Sistema d'agrupament sanguini AB0 (Catalan Wikipedia)

Technical Monograph No. 2: The AB0 Blood Group System and ABO Subgroups (PDF). Biotec, març 2005 [Consulta: 12 desembre 2010]. «... The frequency of blood group A is quite high (25-55%) in Europe, especially in Scandinavia and parts of central Europe. High group A frequency is also found in the Aborigines of South Australia (up to 45%) and in certain American Indian tribes where the frequency reaches 35% ...» Arxivat 2007-02-06 a Wayback Machine.

bloddonor.dk

Frequency of major blood groups in the Danish population.

blood.co.uk

«Frequency of major blood groups in the UK». Blood.co.uk. Arxivat de l'original el 2009-10-11. [Consulta: 19 novembre 2010].

bloodjournal.org

Gill, JC; Endres-Brooks J, Bauer PJ, Marks WJ, Montgomery RR «The effect of ABO blood group on the diagnosis of von Willebrand disease» (abstract). Blood, 69, 6, June 1987, pàg. 1691–5. PMID: 3495304.

bloodservices.ca

Canadian Blood Services - Société canadienne du sang. «Types & Rh System, Canadian Blood Services». Arxivat de l'original el 2014-11-04. [Consulta: 19 novembre 2010].

chpg.mc

«Les groupes sanguins (système ABO)» (en francès). Centre Hospitalier Princesse GRACE - Monaco. C.H.P.G. MONACO, 2005. Arxivat de l'original el 2008-09-19. [Consulta: 15 juliol 2008].

cia.gov

«CIA World Factbook». Arxivat de l'original el 2018-12-25. [Consulta: 12 desembre 2010].

dadamo.com

^{[enllaç sense format]} http://www.dadamo.com/

doi.org

dx.doi.org

«Letter to the Editor: “Natural” Versus Regular Antibodies». The Protein Journal. Springer Netherlands, Volume 23, Number 6 / August, 2004, Friday, 07 gener 2005, p. 357. DOI: 10.1023/B:JOPC.0000039625.56296.6e. ISSN: (Print) 1573-4943 (Online) 1572-3887 (Print) 1573-4943 (Online).
Arendrup, M; Hansen JE, Clausen H, Nielsen C, Mathiesen LR, Nielsen JO «Antibody to histo-blood group A antigen neutralizes HIV produced by lymphocytes from blood group A donors but not from blood group B or O donors». AIDS, 5, 4, abril 1991, pàg. 441–4. DOI: 10.1097/00002030-199104000-00014. PMID: 1711864.
Neil, SJ; McKnight A, Gustafsson K, Weiss RA «HIV-1 incorporates ABO histo-blood group antigens that sensitize virions to complement-mediated inactivation». Blood, 105, 12, 15-06-2005, pàg. 4693–9. DOI: 10.1182/blood-2004-11-4267. PMID: 15728127.
Reid, ME; Mohandas, N «Red blood cell blood group antigens: structure and function.». Seminars in hematology, 41, 2, 2004, pàg. 93–117. DOI: 10.1053/j.seminhematol.2004.01.001. PMID: 15071789.
Mohandas, N; Narla, A «Blood group antigens in health and disease.». Current opinion in hematology, 12, 2, 2005, pàg. 135–40. DOI: 10.1097/01.moh.0000153000.09585.79. PMID: 15725904.
Yazer M, Olsson M, Palcic M «The cis-AB blood group phenotype: fundamental lessons in glycobiology». Transfus Med Rev, 20, 3, 2006, pàg. 207–17. DOI: 10.1016/j.tmrv.2006.03.002. PMID: 16787828.
Seltsam A, Hallensleben M, Kollmann A, Blasczyk R «The nature of diversity and diversification at the AB0 locus». Blood, 102, 8, 2003, pàg. 3035–42. DOI: 10.1182/blood-2003-03-0955. PMID: 12829588.
Ogasawara K, Bannai M, Saitou N, et al. «Extensive polymorphism of ABO blood group gene: three major lineages of the alleles for the common ABO phenotypes». Human Genetics, 97, 6, 1996, pàg. 777–83. DOI: 10.1007/BF02346189. PMID: 8641696.
Calafell, Francesc [et al]. «Evolutionary dynamics of the human ABO gene». Human Genetics, 124, 2, setembre 2008, pàg. 123–135. DOI: 10.1007/s00439-008-0530-8. PMID: 18629539 [Consulta: 24 setembre 2008].^{[Enllaç no actiu]}
Sarode, R; Goldstein J, Sussman II, Nagel RL, Tsai HM «Role of A and B blood group antigens in the expression of adhesive activity of von Willebrand factor». Br J Haematol., 109, 4, June 2000, pàg. 857–64. DOI: 10.1046/j.1365-2141.2000.02113.x. PMID: 10929042.
O'Donnell, J; Laffan MA «The relationship between ABO histo-blood group, factor VIII and von Willebrand factor». Transfus Med., 11, 4, August 2001, pàg. 343–51. DOI: 10.1046/j.1365-3148.2001.00315.x. PMID: 11532189.
O'Donnell, J; Boulton FE, Manning RA, Laffan MA «Amount of H antigen expressed on circulating von Willebrand factor is modifiedby ABO blood group genotype and is a major determinant of plasma von Willebrand factor antigen levels». Arterioscler Thromb Vasc Biol.. American Heart Association, Inc., 22, 2, 01-02-2002, pàg. 335–41. DOI: 10.1161/hq0202.103997. PMID: 11834538.
Shima, M; Fujimura Y, Nishiyama T et al. «ABO blood group genotype and plasma von Willebrand factor in normal individuals». Vox Sang, 68, 4, 1995, pàg. 236–40. DOI: 10.1111/j.1423-0410.1995.tb02579.x. PMID: 7660643.
Bowen, DJ; Collins PW, Lester W, et al. «The prevalence of the cysteine1584 variant of von Willebrand factor is increased in type 1 von Willebrand disease: co-segregation with increased susceptibility to ADAMTS13 proteolysis but not clinical phenotype». Br J Haematol. Blackwell Synergy, 128, 6, March 2005, pàg. 830–6. DOI: 10.1111/j.1365-2141.2005.05375.x. PMID: 15755288.
Bongers T, de Maat M, van Goor M, et al. «High von Willebrand factor levels increase the risk of first ischemic stroke: influence of ADAMTS13, inflammation, and genetic variability». Stroke, 37, 11, 2006, pàg. 2672–7. DOI: 10.1161/01.STR.0000244767.39962.f7. PMID: 16990571.
Wolpin, BM; Kraft, P; Gross, M; Helzlsouer, K; Bueno-De-Mesquita, HB; Steplowski, E; Stolzenberg-Solomon, RZ; Arslan, AA; Jacobs, EJ «Pancreatic cancer risk and ABO blood group alleles: results from the pancreatic cancer cohort consortium.». Cancer research, 70, 3, 2010, pàg. 1015-23. DOI: 10.1158/0008-5472.CAN-09-2993. PMC: 2943735. PMID: 20103627.
Amundadottir, L; Kraft, P; Stolzenberg-Solomon, RZ; Fuchs, CS; Petersen, GM; Arslan, AA; Bueno-De-Mesquita, HB; Gross, M; Helzlsouer, K «Genome-wide association study identifies variants in the ABO locus associated with susceptibility to pancreatic cancer.». Nature genetics, 41, 9, 2009, pàg. 986–90. DOI: 10.1038/ng.429. PMC: 2839871. PMID: 19648918.
Gates, MA; Wolpin, BM; Cramer, DW; Hankinson, SE; Tworoger, SS «ABO blood group and incidence of epithelial ovarian cancer.». International journal of cancer. Journal international du cancer, 128, 2010, pàg. n/a. DOI: 10.1002/ijc.25339. PMC: 2946962. PMID: 20309936.
Aird, I; Bentall, HH; Roberts, JA «A relationship between cancer of stomach and the ABO blood groups.». British medical journal, 1, 4814, 1953, pàg. 799–801. DOI: 10.1136/bmj.1.4814.799. PMC: 2015995. PMID: 13032504.

donantesdesangre.net

«Federación Nacional de Donantes de Sangre/La sangre/Grupos». Donantesdesangre.net. Arxivat de l'original el 2010-01-10. [Consulta: 19 novembre 2010].

donasang.org

Balears, Fundació Banc de Sang i Teixits de les Illes. «Quadre de compatibilitat - Què és la sang?». [Consulta: 16 octubre 2020].

geblod.nu

«Frequency of major blood groups in the Swedish population». Geblod.nu, 02-10-2007. Arxivat de l'original el 2010-11-24. [Consulta: 19 novembre 2010].

gencat.cat

termcat.blog.gencat.cat

xarxes. «Com s’anomena el grup sanguini 0 o O: zero o amb la lletra o?», 05-02-2015. [Consulta: 18 abril 2024].

giblod.no

«Norwegian Blood Donor Organization». Arxivat de l'original el 2011-07-24. [Consulta: 12 desembre 2010].

google.cat

books.google.cat

Blood Transfusion Division, United States Army Medical Research Laboratory. Selected contributions to the literature of blood groups and immunology. 1971 v. 4. United States Army Medical Research Laboratory, Fort Knox, Kentucky, 1971. «... In northern India, in Southern and Central China and in the neighboring Central Asiatic areas, we find the highest known frequencies of B. If we leave this center, the frequency of the B gene decreases almost everywhere ...»
Encyclopaedia Britannica. The New Encyclopaedia Britannica. Encyclopaedia Britannica, Inc., 2002. ISBN 0852297874. «... The maximum frequency of the B gene occurs in Central Asia and northern India. The B gene was probably absent from American Indians and Australian Aborigines before racial admixture occurred with the coming of the white man ...»
Carol R. Ember, Melvin Ember. Anthropology. Appleton-Century-Crofts, 1973. «... Blood type B is completely absent in most North and South American Indians ...»

ha.org.hk

www5.ha.org.hk

«Blood Donation, Hong Kong Red Cross». Arxivat de l'original el 2009-04-07. [Consulta: 12 desembre 2010].

hematologylibrary.org

bloodjournal.hematologylibrary.org

Neil, SJ; McKnight A, Gustafsson K, Weiss RA «HIV-1 incorporates ABO histo-blood group antigens that sensitize virions to complement-mediated inactivation». Blood, 105, 12, 15-06-2005, pàg. 4693–9. DOI: 10.1182/blood-2004-11-4267. PMID: 15728127.

hemoam.org.br

Tipos Sanguíneos

ibts.ie

«Irish Blood Transfusion Service - Irish Blood Group Type Frequency Distribution». Irish Blood Transfusion Service. Arxivat de l'original el 2009-05-28. [Consulta: 7 novembre 2009].

indmedica.com

«Indian Journal for the Practising Doctor». Indmedica.com. Arxivat de l'original el 2018-11-16. [Consulta: 19 novembre 2010].

inist.fr

cat.inist.fr

«Fequency of ABO blood groups in the eastern region of Saudi Arabia». Cat.inist.fr. Arxivat de l'original el 2010-05-27. [Consulta: 19 novembre 2010].

ipsangue.org

«Portuguese Blood Institute» (en portuguese). (assuming Rh and AB antigens are independent)

kangrubu.com

«Turkey Blood Group Site». Kangrubu.com. Arxivat de l'original el 2010-05-29. [Consulta: 19 novembre 2010].

kliinikum.ee

«Veregruppide esinemissagedus Eestis» (en estonian). Arxivat de l'original el 2010-05-27. [Consulta: 19 novembre 2010].

landspitali.is

www4.landspitali.is

«Blóðflokkar» (en icelandic). .landspitali.is. [Consulta: 19 novembre 2010].

mdais.org

«The national rescue service in Israel» (en hebrew). Mdais.org. [Consulta: 19 novembre 2010].

metapress.com

resources.metapress.com

«Letter to the Editor: “Natural” Versus Regular Antibodies». The Protein Journal. Springer Netherlands, Volume 23, Number 6 / August, 2004, Friday, 07 gener 2005, p. 357. DOI: 10.1023/B:JOPC.0000039625.56296.6e. ISSN: (Print) 1573-4943 (Online) 1572-3887 (Print) 1573-4943 (Online).

nih.gov

ncbi.nlm.nih.gov

Crow J «Felix Bernstein and the first human marker locus». Genetics, 133, 1, 1993, pàg. 4–7. PMC: 1205297. PMID: 8417988.
Arendrup, M; Hansen JE, Clausen H, Nielsen C, Mathiesen LR, Nielsen JO «Antibody to histo-blood group A antigen neutralizes HIV produced by lymphocytes from blood group A donors but not from blood group B or O donors». AIDS, 5, 4, abril 1991, pàg. 441–4. DOI: 10.1097/00002030-199104000-00014. PMID: 1711864.
Neil, SJ; McKnight A, Gustafsson K, Weiss RA «HIV-1 incorporates ABO histo-blood group antigens that sensitize virions to complement-mediated inactivation». Blood, 105, 12, 15-06-2005, pàg. 4693–9. DOI: 10.1182/blood-2004-11-4267. PMID: 15728127.
Reid, ME; Mohandas, N «Red blood cell blood group antigens: structure and function.». Seminars in hematology, 41, 2, 2004, pàg. 93–117. DOI: 10.1053/j.seminhematol.2004.01.001. PMID: 15071789.
Mohandas, N; Narla, A «Blood group antigens in health and disease.». Current opinion in hematology, 12, 2, 2005, pàg. 135–40. DOI: 10.1097/01.moh.0000153000.09585.79. PMID: 15725904.
Yazer M, Olsson M, Palcic M «The cis-AB blood group phenotype: fundamental lessons in glycobiology». Transfus Med Rev, 20, 3, 2006, pàg. 207–17. DOI: 10.1016/j.tmrv.2006.03.002. PMID: 16787828.
Seltsam A, Hallensleben M, Kollmann A, Blasczyk R «The nature of diversity and diversification at the AB0 locus». Blood, 102, 8, 2003, pàg. 3035–42. DOI: 10.1182/blood-2003-03-0955. PMID: 12829588.
Ogasawara K, Bannai M, Saitou N, et al. «Extensive polymorphism of ABO blood group gene: three major lineages of the alleles for the common ABO phenotypes». Human Genetics, 97, 6, 1996, pàg. 777–83. DOI: 10.1007/BF02346189. PMID: 8641696.
Calafell, Francesc [et al]. «Evolutionary dynamics of the human ABO gene». Human Genetics, 124, 2, setembre 2008, pàg. 123–135. DOI: 10.1007/s00439-008-0530-8. PMID: 18629539 [Consulta: 24 setembre 2008].^{[Enllaç no actiu]}
Laura Dean, MD. Blood Groups an Red Cell Antigens. National Center for Biotechnology Information, United States Government, 2005. ISBN 1932811052. «... Type A is common in Central and Eastern Europe. In countries such as Austria, Denmark, Norway, and Switzerland, about 45-50% of the population have this blood type, whereas about 40% of Poles and Ukrainians do so. The highest frequencies are found in small, unrelated populations. For example, about 80% of the Blackfoot Indians of Montana have blood type A ...»
Sarode, R; Goldstein J, Sussman II, Nagel RL, Tsai HM «Role of A and B blood group antigens in the expression of adhesive activity of von Willebrand factor». Br J Haematol., 109, 4, June 2000, pàg. 857–64. DOI: 10.1046/j.1365-2141.2000.02113.x. PMID: 10929042.
O'Donnell, J; Laffan MA «The relationship between ABO histo-blood group, factor VIII and von Willebrand factor». Transfus Med., 11, 4, August 2001, pàg. 343–51. DOI: 10.1046/j.1365-3148.2001.00315.x. PMID: 11532189.
O'Donnell, J; Boulton FE, Manning RA, Laffan MA «Amount of H antigen expressed on circulating von Willebrand factor is modifiedby ABO blood group genotype and is a major determinant of plasma von Willebrand factor antigen levels». Arterioscler Thromb Vasc Biol.. American Heart Association, Inc., 22, 2, 01-02-2002, pàg. 335–41. DOI: 10.1161/hq0202.103997. PMID: 11834538.
Gill, JC; Endres-Brooks J, Bauer PJ, Marks WJ, Montgomery RR «The effect of ABO blood group on the diagnosis of von Willebrand disease» (abstract). Blood, 69, 6, June 1987, pàg. 1691–5. PMID: 3495304.
Shima, M; Fujimura Y, Nishiyama T et al. «ABO blood group genotype and plasma von Willebrand factor in normal individuals». Vox Sang, 68, 4, 1995, pàg. 236–40. DOI: 10.1111/j.1423-0410.1995.tb02579.x. PMID: 7660643.
Bowen, DJ; Collins PW, Lester W, et al. «The prevalence of the cysteine1584 variant of von Willebrand factor is increased in type 1 von Willebrand disease: co-segregation with increased susceptibility to ADAMTS13 proteolysis but not clinical phenotype». Br J Haematol. Blackwell Synergy, 128, 6, March 2005, pàg. 830–6. DOI: 10.1111/j.1365-2141.2005.05375.x. PMID: 15755288.
Bongers T, de Maat M, van Goor M, et al. «High von Willebrand factor levels increase the risk of first ischemic stroke: influence of ADAMTS13, inflammation, and genetic variability». Stroke, 37, 11, 2006, pàg. 2672–7. DOI: 10.1161/01.STR.0000244767.39962.f7. PMID: 16990571.
Wolpin, BM; Kraft, P; Gross, M; Helzlsouer, K; Bueno-De-Mesquita, HB; Steplowski, E; Stolzenberg-Solomon, RZ; Arslan, AA; Jacobs, EJ «Pancreatic cancer risk and ABO blood group alleles: results from the pancreatic cancer cohort consortium.». Cancer research, 70, 3, 2010, pàg. 1015-23. DOI: 10.1158/0008-5472.CAN-09-2993. PMC: 2943735. PMID: 20103627.
Amundadottir, L; Kraft, P; Stolzenberg-Solomon, RZ; Fuchs, CS; Petersen, GM; Arslan, AA; Bueno-De-Mesquita, HB; Gross, M; Helzlsouer, K «Genome-wide association study identifies variants in the ABO locus associated with susceptibility to pancreatic cancer.». Nature genetics, 41, 9, 2009, pàg. 986–90. DOI: 10.1038/ng.429. PMC: 2839871. PMID: 19648918.
Gates, MA; Wolpin, BM; Cramer, DW; Hankinson, SE; Tworoger, SS «ABO blood group and incidence of epithelial ovarian cancer.». International journal of cancer. Journal international du cancer, 128, 2010, pàg. n/a. DOI: 10.1002/ijc.25339. PMC: 2946962. PMID: 20309936.
Aird, I; Bentall, HH; Roberts, JA «A relationship between cancer of stomach and the ABO blood groups.». British medical journal, 1, 4814, 1953, pàg. 799–801. DOI: 10.1136/bmj.1.4814.799. PMC: 2015995. PMID: 13032504.
Erb IH «Blood Group Classifications, a Plea for Uniformity». Canadian Medical Association Journal, 42, 5, 01-05-1940, pàg. 418–21. PMC: 537907. PMID: 20321693.^{[Enllaç no actiu]}

pubmedcentral.nih.gov

Erb IH «Blood Group Classifications, a Plea for Uniformity». Canadian Medical Association Journal, 42, 5, 01-05-1940, pàg. 418–21. PMC: 537907. PMID: 20321693.^{[Enllaç no actiu]}

nzblood.co.nz

«What are Blood Groups?». NZ Blood. [Consulta: 19 novembre 2010].

plosone.org

Xie J, Qureshi AA, Li Y, Han J, (2010). ABO Blood Group and Incidence of Skin Cancer. PLoS ONE 5(8): e11972. doi|10.1371/journal.pone.0011972

rckik.wroclaw.pl

«Regionalne Centrum Krwiodawstwa i Krwiolecznictwa we Wroclawiu» (en polish). Rckik.wroclaw.pl, 02-09-2010. [Consulta: 19 novembre 2010].

redcross.org.au

giveblood.redcross.org.au

Blood Types - What Are They?, Australian Red Cross

rodekruiswielsbeke.be

«Rode Kruis Wielsbeke - Blood Donor information material». Rodekruiswielsbeke.be. Arxivat de l'original el 2010-11-26. [Consulta: 19 novembre 2010].

roteskreuz.at

old.roteskreuz.at

«Austrian Red Cross - Blood Donor Information». Old.roteskreuz.at, 21-03-2006. [Consulta: 19 novembre 2010].

sanbs.org.za

«South African National Blood Service - What's Your Type?». Sanbs.org.za. Arxivat de l'original el 2010-02-06. [Consulta: 19 novembre 2010].

sanquin.nl

«Voorraad Erytrocytenconcentraten Bij Sanquin» (en dutch). Arxivat de l'original el 2009-06-26. [Consulta: 27 març 2009].

sciam.com

Klein, Harvey G «Why Do People Have Different Blood Types?». Scientific American, 07-03-2005 [Consulta: 16 novembre 2007].

socalredcross.org

American Red Cross, Southern California Blood Services Region «Answers to Commonly Asked Questions About Blood and Blood Banking» (PDF). Blood: the Basics, n.d., pàg. 4. Arxivat de l'original el 2004-10-20 [Consulta: 16 novembre 2007]. Arxivat 2004-10-20 a Wayback Machine.

springerlink.com

Calafell, Francesc [et al]. «Evolutionary dynamics of the human ABO gene». Human Genetics, 124, 2, setembre 2008, pàg. 123–135. DOI: 10.1007/s00439-008-0530-8. PMID: 18629539 [Consulta: 24 setembre 2008].^{[Enllaç no actiu]}

stanford.edu

bloodcenter.stanford.edu

«Blood Types in the U.S». Bloodcenter.stanford.edu, 20-06-2008. Arxivat de l'original el 2010-06-12. [Consulta: 19 novembre 2010].

veripalvelu.fi

«Suomalaisten veriryhmäjakauma» (en finnish), 21-08-2009. Arxivat de l'original el 2012-05-30. [Consulta: 19 novembre 2010].

web.archive.org

«CIA World Factbook». Arxivat de l'original el 2018-12-25. [Consulta: 12 desembre 2010].
«Fequency of ABO blood groups in the eastern region of Saudi Arabia». Cat.inist.fr. Arxivat de l'original el 2010-05-27. [Consulta: 19 novembre 2010].
«Rode Kruis Wielsbeke - Blood Donor information material». Rodekruiswielsbeke.be. Arxivat de l'original el 2010-11-26. [Consulta: 19 novembre 2010].
Canadian Blood Services - Société canadienne du sang. «Types & Rh System, Canadian Blood Services». Arxivat de l'original el 2014-11-04. [Consulta: 19 novembre 2010].
«Federación Nacional de Donantes de Sangre/La sangre/Grupos». Donantesdesangre.net. Arxivat de l'original el 2010-01-10. [Consulta: 19 novembre 2010].
«Blood Types in the U.S». Bloodcenter.stanford.edu, 20-06-2008. Arxivat de l'original el 2010-06-12. [Consulta: 19 novembre 2010].
«Veregruppide esinemissagedus Eestis» (en estonian). Arxivat de l'original el 2010-05-27. [Consulta: 19 novembre 2010].
«Les groupes sanguins (système ABO)» (en francès). Centre Hospitalier Princesse GRACE - Monaco. C.H.P.G. MONACO, 2005. Arxivat de l'original el 2008-09-19. [Consulta: 15 juliol 2008].
«Blood Donation, Hong Kong Red Cross». Arxivat de l'original el 2009-04-07. [Consulta: 12 desembre 2010].
«Indian Journal for the Practising Doctor». Indmedica.com. Arxivat de l'original el 2018-11-16. [Consulta: 19 novembre 2010].
«Irish Blood Transfusion Service - Irish Blood Group Type Frequency Distribution». Irish Blood Transfusion Service. Arxivat de l'original el 2009-05-28. [Consulta: 7 novembre 2009].
«Norwegian Blood Donor Organization». Arxivat de l'original el 2011-07-24. [Consulta: 12 desembre 2010].
«Voorraad Erytrocytenconcentraten Bij Sanquin» (en dutch). Arxivat de l'original el 2009-06-26. [Consulta: 27 març 2009].
«Frequency of major blood groups in the UK». Blood.co.uk. Arxivat de l'original el 2009-10-11. [Consulta: 19 novembre 2010].
«South African National Blood Service - What's Your Type?». Sanbs.org.za. Arxivat de l'original el 2010-02-06. [Consulta: 19 novembre 2010].
«Frequency of major blood groups in the Swedish population». Geblod.nu, 02-10-2007. Arxivat de l'original el 2010-11-24. [Consulta: 19 novembre 2010].
«Turkey Blood Group Site». Kangrubu.com. Arxivat de l'original el 2010-05-29. [Consulta: 19 novembre 2010].
Technical Monograph No. 2: The AB0 Blood Group System and ABO Subgroups (PDF). Biotec, març 2005 [Consulta: 12 desembre 2010]. «... The frequency of blood group A is quite high (25-55%) in Europe, especially in Scandinavia and parts of central Europe. High group A frequency is also found in the Aborigines of South Australia (up to 45%) and in certain American Indian tribes where the frequency reaches 35% ...» Arxivat 2007-02-06 a Wayback Machine.
Blood Group A Suptypes, The Owen Foundation. Retrieved 2008-07-01.
American Red Cross, Southern California Blood Services Region «Answers to Commonly Asked Questions About Blood and Blood Banking» (PDF). Blood: the Basics, n.d., pàg. 4. Arxivat de l'original el 2004-10-20 [Consulta: 16 novembre 2007]. Arxivat 2004-10-20 a Wayback Machine.

worldcat.org

«Letter to the Editor: “Natural” Versus Regular Antibodies». The Protein Journal. Springer Netherlands, Volume 23, Number 6 / August, 2004, Friday, 07 gener 2005, p. 357. DOI: 10.1023/B:JOPC.0000039625.56296.6e. ISSN: (Print) 1573-4943 (Online) 1572-3887 (Print) 1573-4943 (Online).