Det basale reproduktionstal (Danish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Det basale reproduktionstal" in Danish language version.

refsWebsite

Global rank Danish rank

18doi.org

2^nd place

13^th place

17web.archive.org

1^st place

15nih.gov

4^th place

24^th place

3worldcat.org

5^th place

36^th place

2ssi.dk

low place

482^nd place

2oup.com

485^th place

763^rd place

2nature.com

234^th place

176^th place

2cdc.gov

218^th place

916^th place

1stanford.edu

179^th place

256^th place

1gabgoh.github.io

low place

1dr.dk

1,346^th place

2^nd place

1oxfordjournals.org

1,389^th place

892^nd place

1books.google.com

3^rd place

25^th place

1thelancet.com

2,393^rd place

2,132^nd place

1hse.ie

low place

1121.65

low place

1telegraph.co.uk

30^th place

56^th place

1arxiv.org

69^th place

489^th place

1harvard.edu

18^th place

119^th place

121.65

171.66.121.65

Wallinga J, Teunis P (2004). "Different epidemic curves for severe acute respiratory syndrome reveal similar impacts of control measures". Am. J. Epidemiol. 160 (6): 509-16. doi:10.1093/aje/kwh255. PMID 15353409. Arkiveret fra originalen 2007-10-06.

arxiv.org

Althaus, Christian L. (2014). "Estimating the Reproduction Number of Ebola Virus (EBOV) During the 2014 Outbreak in West Africa". PLOS Currents. 6. arXiv:1408.3505. Bibcode:2014arXiv1408.3505A. doi:10.1371/currents.outbreaks.91afb5e0f279e7f29e7056095255b288. PMC 4169395. PMID 25642364.

books.google.com

Dabbaghian, V.; Mago, V. K. (2013). Theories and Simulations of Complex Social Systems. Springer. s. 134-35. ISBN 978-3642391491. Arkiveret fra originalen 26. juli 2020. Hentet 29. marts 2015.

cdc.gov

wwwnc.cdc.gov

Sanche, Steven; Lin, Yen Ting; Xu, Chonggang; Romero-Severson, Ethan; Hengartner, Nick; Ke, Ruian (7. april 2020). "High Contagiousness and Rapid Spread of Severe Acute Respiratory Syndrome Coronavirus 2". Emerging Infectious Diseases. 26 (7). doi:10.3201/eid2607.200282. PMID 32255761. Arkiveret fra originalen 20. maj 2020. Hentet 9. april 2020.

stacks.cdc.gov

Unless noted R₀ values are from History and Epidemiology of Global Smallpox Eradication (Arkiveret 2016-05-10 hos Wayback Machine), a module of the training course "Smallpox: Disease, Prevention, and Intervention". The CDC and the World Health Organization, 2001. Slide 17. This gives sources as "Modified from Epid Rev 1993;15: 265-302, Am J Prev Med 2001; 20 (4S): 88-153, MMWR 2000; 49 (SS-9); 27-38"

doi.org

Sanche, Steven; Lin, Yen Ting; Xu, Chonggang; Romero-Severson, Ethan; Hengartner, Nick; Ke, Ruian (7. april 2020). "High Contagiousness and Rapid Spread of Severe Acute Respiratory Syndrome Coronavirus 2". Emerging Infectious Diseases. 26 (7). doi:10.3201/eid2607.200282. PMID 32255761. Arkiveret fra originalen 20. maj 2020. Hentet 9. april 2020.
Rocklöv, J.; Sjödin, H.; Wilder-Smith, A. "COVID-19 outbreak on the Diamond Princess cruise ship: estimating the epidemic potential and effectiveness of public health countermeasures". Journal of Travel Medicine (engelsk). doi:10.1093/jtm/taaa030. Arkiveret fra originalen 3. marts 2020. Hentet 29. marts 2020.
Garnett, G. P. (1. februar 2005). "Role of Herd Immunity in Determining the Effect of Vaccines against Sexually Transmitted Disease". The Journal of Infectious Diseases. 191 (Suppl 1): S97-106. doi:10.1086/425271. PMID 15627236. Arkiveret fra originalen 23. oktober 2016. Hentet 14. januar 2021.
Rodpothong, P; Auewarakul, P (2012). "Viral evolution and transmission effectiveness". World Journal of Virology. 1 (5): 131-34. doi:10.5501/wjv.v1.i5.131. PMC 3782273. PMID 24175217.
Guerra, Fiona M.; Bolotin, Shelly; Lim, Gillian; Heffernan, Jane; Deeks, Shelley L.; Li, Ye; Crowcroft, Natasha S. (1. december 2017). "The basic reproduction number (R0) of measles: a systematic review". The Lancet Infectious Diseases (engelsk). 17 (12): e420-e428. doi:10.1016/S1473-3099(17)30307-9. ISSN 1473-3099. Arkiveret fra originalen 10. april 2020. Hentet 18. marts 2020.
Kretzschmar M, Teunis PF, Pebody RG (2010). "Incidence and reproduction numbers of pertussis: estimates from serological and social contact data in five European countries". PLOS Med. 7 (6): e1000291. doi:10.1371/journal.pmed.1000291. PMC 2889930. PMID 20585374.
Gani, Raymond; Leach, Steve (december 2001). "Transmission potential of smallpox in contemporary populations". Nature (engelsk). 414 (6865): 748-751. doi:10.1038/414748a. ISSN 1476-4687. Arkiveret fra originalen 10. juni 2020. Hentet 18. marts 2020.
Wallinga J, Teunis P (2004). "Different epidemic curves for severe acute respiratory syndrome reveal similar impacts of control measures". Am. J. Epidemiol. 160 (6): 509-16. doi:10.1093/aje/kwh255. PMID 15353409. Arkiveret fra originalen 2007-10-06.
Truelove, Shaun A.; Keegan, Lindsay T.; Moss, William J.; Chaisson, Lelia H.; Macher, Emilie; Azman, Andrew S.; Lessler, Justin. "Clinical and Epidemiological Aspects of Diphtheria: A Systematic Review and Pooled Analysis". Clinical Infectious Diseases (engelsk). doi:10.1093/cid/ciz808. Arkiveret fra originalen 18. april 2020. Hentet 18. marts 2020.
Li Q, Guan X, Wu P, Wang X, Zhou L, Tong Y, et al. (januar 2020). "Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus-Infected Pneumonia". The New England Journal of Medicine. doi:10.1056/NEJMoa2001316. PMID 31995857.
Riou, Julien and Althaus, Christian L. (2020). "Pattern of early human-to-human transmission of Wuhan 2019 novel coronavirus (2019-nCoV), December 2019 to January 2020". Eurosurveillance. 25 (4). doi:10.2807/1560-7917.ES.2020.25.4.2000058. PMC 7001239. PMID 32019669.{{cite journal}}: CS1-vedligeholdelse: Flere navne: authors list (link)
Liu T, Hu J, Kang M, Lin L (januar 2020). "Time-varying transmission dynamics of Novel Coronavirus Pneumonia in China". bioRxiv. doi:10.1101/2020.01.25.919787.
Read JM, Bridgen JRE, Cummings DAT, et al. (28. januar 2020). "Novel coronavirus 2019-nCoV: early estimation of epidemiological parameters and epidemic predictions". MedRxiv. doi:10.1101/2020.01.23.20018549.
Wu, Joseph T.; Leung, Kathy; Bushman, Mary; Kishore, Nishant; Niehus, Rene; de Salazar, Pablo M.; Cowling, Benjamin J.; Lipsitch, Marc; Leung, Gabriel M. (19. marts 2020). "Estimating clinical severity of COVID-19 from the transmission dynamics in Wuhan, China". Nature Medicine (engelsk): 1-5. doi:10.1038/s41591-020-0822-7. ISSN 1546-170X. Arkiveret fra originalen 2. april 2020. Hentet 2. april 2020.
Ferguson NM; Cummings DA; Fraser C; Cajka JC; Cooley PC; Burke DS (2006). "Strategies for mitigating an influenza pandemic". Nature. 442 (7101): 448-452. doi:10.1038/nature04795. PMID 16642006.
Althaus, Christian L. (2014). "Estimating the Reproduction Number of Ebola Virus (EBOV) During the 2014 Outbreak in West Africa". PLOS Currents. 6. arXiv:1408.3505. Bibcode:2014arXiv1408.3505A. doi:10.1371/currents.outbreaks.91afb5e0f279e7f29e7056095255b288. PMC 4169395. PMID 25642364.
Coburn BJ; Wagner BG; Blower S (2009). "Modeling influenza epidemics and pandemics: insights into the future of swine flu (H1N1)". BMC Medicine. 7. Article 30. doi:10.1186/1741-7015-7-30. PMID 19545404.
Kucharski, Adam and Althaus, Christian L. (2015). "The role of superspreading in Middle East respiratory syndrome coronavirus (MERS-CoV) transmission". Eurosurveillance. 20 (26): 14-8. doi:10.2807/1560-7917.ES2015.20.25.21167. PMID 26132768.{{cite journal}}: CS1-vedligeholdelse: Flere navne: authors list (link)

dr.dk

Mark Lindved Norup (10. maj 2020). "Én smittet mand tog på klub: Nu lukker Seoul ned for hele nattelivet efter coronaudbrud". DR. Arkiveret fra originalen 16. maj 2020.

gabgoh.github.io

"Epidemic Calculator". gabgoh.github.io. Arkiveret fra originalen 29. marts 2020. Hentet 29. marts 2020.

harvard.edu

ui.adsabs.harvard.edu

Althaus, Christian L. (2014). "Estimating the Reproduction Number of Ebola Virus (EBOV) During the 2014 Outbreak in West Africa". PLOS Currents. 6. arXiv:1408.3505. Bibcode:2014arXiv1408.3505A. doi:10.1371/currents.outbreaks.91afb5e0f279e7f29e7056095255b288. PMC 4169395. PMID 25642364.

hse.ie

Ireland's Health Services. Health Care Worker Information (PDF). Arkiveret (PDF) fra originalen 26. marts 2020. Hentet 2020-03-27.

nature.com

Gani, Raymond; Leach, Steve (december 2001). "Transmission potential of smallpox in contemporary populations". Nature (engelsk). 414 (6865): 748-751. doi:10.1038/414748a. ISSN 1476-4687. Arkiveret fra originalen 10. juni 2020. Hentet 18. marts 2020.
Wu, Joseph T.; Leung, Kathy; Bushman, Mary; Kishore, Nishant; Niehus, Rene; de Salazar, Pablo M.; Cowling, Benjamin J.; Lipsitch, Marc; Leung, Gabriel M. (19. marts 2020). "Estimating clinical severity of COVID-19 from the transmission dynamics in Wuhan, China". Nature Medicine (engelsk): 1-5. doi:10.1038/s41591-020-0822-7. ISSN 1546-170X. Arkiveret fra originalen 2. april 2020. Hentet 2. april 2020.

nih.gov

pubmed.ncbi.nlm.nih.gov

Sanche, Steven; Lin, Yen Ting; Xu, Chonggang; Romero-Severson, Ethan; Hengartner, Nick; Ke, Ruian (7. april 2020). "High Contagiousness and Rapid Spread of Severe Acute Respiratory Syndrome Coronavirus 2". Emerging Infectious Diseases. 26 (7). doi:10.3201/eid2607.200282. PMID 32255761. Arkiveret fra originalen 20. maj 2020. Hentet 9. april 2020.
Garnett, G. P. (1. februar 2005). "Role of Herd Immunity in Determining the Effect of Vaccines against Sexually Transmitted Disease". The Journal of Infectious Diseases. 191 (Suppl 1): S97-106. doi:10.1086/425271. PMID 15627236. Arkiveret fra originalen 23. oktober 2016. Hentet 14. januar 2021.
Rodpothong, P; Auewarakul, P (2012). "Viral evolution and transmission effectiveness". World Journal of Virology. 1 (5): 131-34. doi:10.5501/wjv.v1.i5.131. PMC 3782273. PMID 24175217.
Kretzschmar M, Teunis PF, Pebody RG (2010). "Incidence and reproduction numbers of pertussis: estimates from serological and social contact data in five European countries". PLOS Med. 7 (6): e1000291. doi:10.1371/journal.pmed.1000291. PMC 2889930. PMID 20585374.
Wallinga J, Teunis P (2004). "Different epidemic curves for severe acute respiratory syndrome reveal similar impacts of control measures". Am. J. Epidemiol. 160 (6): 509-16. doi:10.1093/aje/kwh255. PMID 15353409. Arkiveret fra originalen 2007-10-06.
Li Q, Guan X, Wu P, Wang X, Zhou L, Tong Y, et al. (januar 2020). "Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus-Infected Pneumonia". The New England Journal of Medicine. doi:10.1056/NEJMoa2001316. PMID 31995857.
Riou, Julien and Althaus, Christian L. (2020). "Pattern of early human-to-human transmission of Wuhan 2019 novel coronavirus (2019-nCoV), December 2019 to January 2020". Eurosurveillance. 25 (4). doi:10.2807/1560-7917.ES.2020.25.4.2000058. PMC 7001239. PMID 32019669.{{cite journal}}: CS1-vedligeholdelse: Flere navne: authors list (link)
Ferguson NM; Cummings DA; Fraser C; Cajka JC; Cooley PC; Burke DS (2006). "Strategies for mitigating an influenza pandemic". Nature. 442 (7101): 448-452. doi:10.1038/nature04795. PMID 16642006.
Althaus, Christian L. (2014). "Estimating the Reproduction Number of Ebola Virus (EBOV) During the 2014 Outbreak in West Africa". PLOS Currents. 6. arXiv:1408.3505. Bibcode:2014arXiv1408.3505A. doi:10.1371/currents.outbreaks.91afb5e0f279e7f29e7056095255b288. PMC 4169395. PMID 25642364.
Coburn BJ; Wagner BG; Blower S (2009). "Modeling influenza epidemics and pandemics: insights into the future of swine flu (H1N1)". BMC Medicine. 7. Article 30. doi:10.1186/1741-7015-7-30. PMID 19545404.
Kucharski, Adam and Althaus, Christian L. (2015). "The role of superspreading in Middle East respiratory syndrome coronavirus (MERS-CoV) transmission". Eurosurveillance. 20 (26): 14-8. doi:10.2807/1560-7917.ES2015.20.25.21167. PMID 26132768.{{cite journal}}: CS1-vedligeholdelse: Flere navne: authors list (link)

ncbi.nlm.nih.gov

Rodpothong, P; Auewarakul, P (2012). "Viral evolution and transmission effectiveness". World Journal of Virology. 1 (5): 131-34. doi:10.5501/wjv.v1.i5.131. PMC 3782273. PMID 24175217.
Kretzschmar M, Teunis PF, Pebody RG (2010). "Incidence and reproduction numbers of pertussis: estimates from serological and social contact data in five European countries". PLOS Med. 7 (6): e1000291. doi:10.1371/journal.pmed.1000291. PMC 2889930. PMID 20585374.
Riou, Julien and Althaus, Christian L. (2020). "Pattern of early human-to-human transmission of Wuhan 2019 novel coronavirus (2019-nCoV), December 2019 to January 2020". Eurosurveillance. 25 (4). doi:10.2807/1560-7917.ES.2020.25.4.2000058. PMC 7001239. PMID 32019669.{{cite journal}}: CS1-vedligeholdelse: Flere navne: authors list (link)
Althaus, Christian L. (2014). "Estimating the Reproduction Number of Ebola Virus (EBOV) During the 2014 Outbreak in West Africa". PLOS Currents. 6. arXiv:1408.3505. Bibcode:2014arXiv1408.3505A. doi:10.1371/currents.outbreaks.91afb5e0f279e7f29e7056095255b288. PMC 4169395. PMID 25642364.

oup.com

academic.oup.com

Rocklöv, J.; Sjödin, H.; Wilder-Smith, A. "COVID-19 outbreak on the Diamond Princess cruise ship: estimating the epidemic potential and effectiveness of public health countermeasures". Journal of Travel Medicine (engelsk). doi:10.1093/jtm/taaa030. Arkiveret fra originalen 3. marts 2020. Hentet 29. marts 2020.
Truelove, Shaun A.; Keegan, Lindsay T.; Moss, William J.; Chaisson, Lelia H.; Macher, Emilie; Azman, Andrew S.; Lessler, Justin. "Clinical and Epidemiological Aspects of Diphtheria: A Systematic Review and Pooled Analysis". Clinical Infectious Diseases (engelsk). doi:10.1093/cid/ciz808. Arkiveret fra originalen 18. april 2020. Hentet 18. marts 2020.

oxfordjournals.org

jid.oxfordjournals.org

Garnett, G. P. (1. februar 2005). "Role of Herd Immunity in Determining the Effect of Vaccines against Sexually Transmitted Disease". The Journal of Infectious Diseases. 191 (Suppl 1): S97-106. doi:10.1086/425271. PMID 15627236. Arkiveret fra originalen 23. oktober 2016. Hentet 14. januar 2021.

ssi.dk

"Reproduktionstallet har ligget under eller omkring 1 siden slutningen af april". Statens Serum Institut. 11. juni 2020. Arkiveret fra originalen 5. januar 2021. Hentet 14. januar 2021.
"Vurdering af det aktuelle smittetryk i Danmark i forhold til COVID-19 den 23. marts 2020" Arkiveret 31. marts 2020 hos Wayback Machine. hentet 31. marts 2020.

stanford.edu

web.stanford.edu

Holland Jones, James (2007). Notes on $R_{0}$ (PDF) (engelsk). Stanford University. s. 1-2. Arkiveret (PDF) fra originalen 4. januar 2020. Hentet 2. april 2020.

telegraph.co.uk

"Magic formula that will determine whether Ebola is beaten". The Telegraph. Telegraph.Co.Uk. Arkiveret fra originalen 7. november 2014. Hentet 30. marts 2020.

thelancet.com

Guerra, Fiona M.; Bolotin, Shelly; Lim, Gillian; Heffernan, Jane; Deeks, Shelley L.; Li, Ye; Crowcroft, Natasha S. (1. december 2017). "The basic reproduction number (R0) of measles: a systematic review". The Lancet Infectious Diseases (engelsk). 17 (12): e420-e428. doi:10.1016/S1473-3099(17)30307-9. ISSN 1473-3099. Arkiveret fra originalen 10. april 2020. Hentet 18. marts 2020.

web.archive.org

"Reproduktionstallet har ligget under eller omkring 1 siden slutningen af april". Statens Serum Institut. 11. juni 2020. Arkiveret fra originalen 5. januar 2021. Hentet 14. januar 2021.
"Vurdering af det aktuelle smittetryk i Danmark i forhold til COVID-19 den 23. marts 2020" Arkiveret 31. marts 2020 hos Wayback Machine. hentet 31. marts 2020.
Holland Jones, James (2007). Notes on $R_{0}$ (PDF) (engelsk). Stanford University. s. 1-2. Arkiveret (PDF) fra originalen 4. januar 2020. Hentet 2. april 2020.
Sanche, Steven; Lin, Yen Ting; Xu, Chonggang; Romero-Severson, Ethan; Hengartner, Nick; Ke, Ruian (7. april 2020). "High Contagiousness and Rapid Spread of Severe Acute Respiratory Syndrome Coronavirus 2". Emerging Infectious Diseases. 26 (7). doi:10.3201/eid2607.200282. PMID 32255761. Arkiveret fra originalen 20. maj 2020. Hentet 9. april 2020.
Rocklöv, J.; Sjödin, H.; Wilder-Smith, A. "COVID-19 outbreak on the Diamond Princess cruise ship: estimating the epidemic potential and effectiveness of public health countermeasures". Journal of Travel Medicine (engelsk). doi:10.1093/jtm/taaa030. Arkiveret fra originalen 3. marts 2020. Hentet 29. marts 2020.
"Epidemic Calculator". gabgoh.github.io. Arkiveret fra originalen 29. marts 2020. Hentet 29. marts 2020.
Mark Lindved Norup (10. maj 2020). "Én smittet mand tog på klub: Nu lukker Seoul ned for hele nattelivet efter coronaudbrud". DR. Arkiveret fra originalen 16. maj 2020.
Garnett, G. P. (1. februar 2005). "Role of Herd Immunity in Determining the Effect of Vaccines against Sexually Transmitted Disease". The Journal of Infectious Diseases. 191 (Suppl 1): S97-106. doi:10.1086/425271. PMID 15627236. Arkiveret fra originalen 23. oktober 2016. Hentet 14. januar 2021.
Dabbaghian, V.; Mago, V. K. (2013). Theories and Simulations of Complex Social Systems. Springer. s. 134-35. ISBN 978-3642391491. Arkiveret fra originalen 26. juli 2020. Hentet 29. marts 2015.
Unless noted R₀ values are from History and Epidemiology of Global Smallpox Eradication (Arkiveret 2016-05-10 hos Wayback Machine), a module of the training course "Smallpox: Disease, Prevention, and Intervention". The CDC and the World Health Organization, 2001. Slide 17. This gives sources as "Modified from Epid Rev 1993;15: 265-302, Am J Prev Med 2001; 20 (4S): 88-153, MMWR 2000; 49 (SS-9); 27-38"
Guerra, Fiona M.; Bolotin, Shelly; Lim, Gillian; Heffernan, Jane; Deeks, Shelley L.; Li, Ye; Crowcroft, Natasha S. (1. december 2017). "The basic reproduction number (R0) of measles: a systematic review". The Lancet Infectious Diseases (engelsk). 17 (12): e420-e428. doi:10.1016/S1473-3099(17)30307-9. ISSN 1473-3099. Arkiveret fra originalen 10. april 2020. Hentet 18. marts 2020.
Ireland's Health Services. Health Care Worker Information (PDF). Arkiveret (PDF) fra originalen 26. marts 2020. Hentet 2020-03-27.
Gani, Raymond; Leach, Steve (december 2001). "Transmission potential of smallpox in contemporary populations". Nature (engelsk). 414 (6865): 748-751. doi:10.1038/414748a. ISSN 1476-4687. Arkiveret fra originalen 10. juni 2020. Hentet 18. marts 2020.
Wallinga J, Teunis P (2004). "Different epidemic curves for severe acute respiratory syndrome reveal similar impacts of control measures". Am. J. Epidemiol. 160 (6): 509-16. doi:10.1093/aje/kwh255. PMID 15353409. Arkiveret fra originalen 2007-10-06.
"Magic formula that will determine whether Ebola is beaten". The Telegraph. Telegraph.Co.Uk. Arkiveret fra originalen 7. november 2014. Hentet 30. marts 2020.
Truelove, Shaun A.; Keegan, Lindsay T.; Moss, William J.; Chaisson, Lelia H.; Macher, Emilie; Azman, Andrew S.; Lessler, Justin. "Clinical and Epidemiological Aspects of Diphtheria: A Systematic Review and Pooled Analysis". Clinical Infectious Diseases (engelsk). doi:10.1093/cid/ciz808. Arkiveret fra originalen 18. april 2020. Hentet 18. marts 2020.
Wu, Joseph T.; Leung, Kathy; Bushman, Mary; Kishore, Nishant; Niehus, Rene; de Salazar, Pablo M.; Cowling, Benjamin J.; Lipsitch, Marc; Leung, Gabriel M. (19. marts 2020). "Estimating clinical severity of COVID-19 from the transmission dynamics in Wuhan, China". Nature Medicine (engelsk): 1-5. doi:10.1038/s41591-020-0822-7. ISSN 1546-170X. Arkiveret fra originalen 2. april 2020. Hentet 2. april 2020.

worldcat.org

Guerra, Fiona M.; Bolotin, Shelly; Lim, Gillian; Heffernan, Jane; Deeks, Shelley L.; Li, Ye; Crowcroft, Natasha S. (1. december 2017). "The basic reproduction number (R0) of measles: a systematic review". The Lancet Infectious Diseases (engelsk). 17 (12): e420-e428. doi:10.1016/S1473-3099(17)30307-9. ISSN 1473-3099. Arkiveret fra originalen 10. april 2020. Hentet 18. marts 2020.
Gani, Raymond; Leach, Steve (december 2001). "Transmission potential of smallpox in contemporary populations". Nature (engelsk). 414 (6865): 748-751. doi:10.1038/414748a. ISSN 1476-4687. Arkiveret fra originalen 10. juni 2020. Hentet 18. marts 2020.
Wu, Joseph T.; Leung, Kathy; Bushman, Mary; Kishore, Nishant; Niehus, Rene; de Salazar, Pablo M.; Cowling, Benjamin J.; Lipsitch, Marc; Leung, Gabriel M. (19. marts 2020). "Estimating clinical severity of COVID-19 from the transmission dynamics in Wuhan, China". Nature Medicine (engelsk): 1-5. doi:10.1038/s41591-020-0822-7. ISSN 1546-170X. Arkiveret fra originalen 2. april 2020. Hentet 2. april 2020.