Macrocycle (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Macrocycle" in English language version.

Last modified: 02:22:31, 12 February 2026 (UTC)

Ref.Un. Ref.Website

Global rank English rank

2321nih.gov

5^th place

2220doi.org

2^nd place

88worldcat.org

4^th place

32adsabs.harvard.edu

14^th place

9^th place

11iupac.org

1,291^st place

1,832^nd place

11srce.hr

1,163^rd place

1,174^th place

11hdl.handle.net

66^th place

34^th place

11orgsyn.org

3,535^th place

4,321^st place

11sciencedirect.com

137^th place

146^th place

11acs.org

865^th place

887^th place

acs.org (Global: 865^th place; English: 887^th place)

pubs.acs.org

Tanada, Mikimasa; Tamiya, Minoru; Matsuo, Atsushi; Chiyoda, Aya; Takano, Koji; Ito, Toshiya; Irie, Machiko; Kotake, Tomoya; Takeyama, Ryuuichi; Kawada, Hatsuo; Hayashi, Ryuji; Ishikawa, Shiho; Nomura, Kenichi; Furuichi, Noriyuki; Morita, Yuya (2023-08-02). "Development of Orally Bioavailable Peptides Targeting an Intracellular Protein: From a Hit to a Clinical KRAS Inhibitor". Journal of the American Chemical Society. 145 (30): 16610–16620. Bibcode:2023JAChS.14516610T. doi:10.1021/jacs.3c03886. ISSN 0002-7863. PMID 37463267.

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

ui.adsabs.harvard.edu

Still, W. Clark; Novack, Vance (February 1984). "Macrocyclic Stereocontrol. Total Synthesis of (±)-3-Deoxyrosaranolide". Journal of the American Chemical Society. 106 (4): 1148–1149. Bibcode:1984JAChS.106.1148S. doi:10.1021/ja00316a072.
Tanada, Mikimasa; Tamiya, Minoru; Matsuo, Atsushi; Chiyoda, Aya; Takano, Koji; Ito, Toshiya; Irie, Machiko; Kotake, Tomoya; Takeyama, Ryuuichi; Kawada, Hatsuo; Hayashi, Ryuji; Ishikawa, Shiho; Nomura, Kenichi; Furuichi, Noriyuki; Morita, Yuya (2023-08-02). "Development of Orally Bioavailable Peptides Targeting an Intracellular Protein: From a Hit to a Clinical KRAS Inhibitor". Journal of the American Chemical Society. 145 (30): 16610–16620. Bibcode:2023JAChS.14516610T. doi:10.1021/jacs.3c03886. ISSN 0002-7863. PMID 37463267.

doi.org (Global: 2^nd place; English: 2^nd place)

Hamilton-Miller, JM (1973). "Chemistry and Biology of the Polyene Macrolide Antibiotics". Bacteriological Reviews. 37 (2): 166–196. doi:10.1128/br.37.2.166-196.1973. PMC 413810. PMID 4578757.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. PMC 10150360. PMID 37017513. Macrocycles are generally defined as organic molecules which contain a ring of at least 12 heavy atoms.
Zhichang Liu; Siva Krishna Mohan Nalluria; J. Fraser Stoddart (2017). "Surveying macrocyclic chemistry: from flexible crown ethers to rigid cyclophanes". Chemical Society Reviews. 46 (9): 2459–2478. doi:10.1039/c7cs00185a. PMID 28462968.
François Diederich; Peter J. Stang; Rik R. Tykwinski, eds. (2008). Modern Supramolecular Chemistry: Strategies for Macrocycle Synthesis. Wiley-VCH. doi:10.1002/9783527621484. ISBN 9783527621484.
Vicente Martí-Centelles; Mrituanjay D. Pandey; M. Isabel Burguete; Santiago V. Luis (2015). "Macrocyclization Reactions: The Importance of Conformational, Configurational, and Template-Induced Preorganization". Chem. Rev. 115 (16): 8736–8834. doi:10.1021/acs.chemrev.5b00056. hdl:10234/154905. PMID 26248133.
Kamat, V.P.; Hagiwara, H.; Katsumi, T.; Hoshi, T.; Suzuki, T.; Ando, M. (2000). "Ring Closing Metathesis Directed Synthesis of (R)-(−)-Muscone from (+)-Citronellal". Tetrahedron. 56 (26): 4397–4403. doi:10.1016/S0040-4020(00)00333-1.
Gerbeleu, Nicolai V.; Arion, Vladimir B.; Burgess, John (2007). Nicolai V. Gerbeleu; Vladimir B. Arion; John Burgess (eds.). Template Synthesis of Macrocyclic Compounds. Wiley-VCH. doi:10.1002/9783527613809. ISBN 9783527613809.
Paul R. Ortiz de Montellano (2008). "Hemes in Biology". Wiley Encyclopedia of Chemical Biology. John Wiley & Sons. pp. 1–10. doi:10.1002/9780470048672.wecb221. ISBN 978-0470048672.
Kamenik, Anna S.; Lessel, Uta; Fuchs, Julian E.; Fox, Thomas; Liedl, Klaus R. (2018). "Peptidic Macrocycles - Conformational Sampling and Thermodynamic Characterization". Journal of Chemical Information and Modeling. 58 (5): 982–992. doi:10.1021/acs.jcim.8b00097. PMC 5974701. PMID 29652495.
Still, W. Clark; Novack, Vance (February 1984). "Macrocyclic Stereocontrol. Total Synthesis of (±)-3-Deoxyrosaranolide". Journal of the American Chemical Society. 106 (4): 1148–1149. Bibcode:1984JAChS.106.1148S. doi:10.1021/ja00316a072.
Choi, Kihang; Hamilton, Andrew D. (2003). "Macrocyclic anion receptors based on directed hydrogen bonding interactions". Coordination Chemistry Reviews. 240 (1–2): 101–110. doi:10.1016/s0010-8545(02)00305-3.
Ermert, Philipp (2017-10-25). "Design, Properties and Recent Application of Macrocycles in Medicinal Chemistry". CHIMIA International Journal for Chemistry. 71 (10): 678–702. doi:10.2533/chimia.2017.678. PMID 29070413.
Marsault, Eric; Peterson, Mark L. (2011-04-14). "Macrocycles Are Great Cycles: Applications, Opportunities, and Challenges of Synthetic Macrocycles in Drug Discovery". Journal of Medicinal Chemistry. 54 (7): 1961–2004. doi:10.1021/jm1012374. ISSN 0022-2623. PMID 21381769.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023-04-27). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. ISSN 0022-2623. PMC 10150360. PMID 37017513.
Zhang, Huiya; Chen, Shiyu (2022-01-05). "Cyclic peptide drugs approved in the last two decades (2001–2021)". RSC Chemical Biology. 3 (1): 18–31. doi:10.1039/D1CB00154J. ISSN 2633-0679. PMC 8729179. PMID 35128405.
Lipinski, Christopher A.; Lombardo, Franco; Dominy, Beryl W.; Feeney, Paul J. (1997-01-15). "Experimental and computational approaches to estimate solubility and permeability in drug discovery and development settings". Advanced Drug Delivery Reviews. In Vitro Models for Selection of Development Candidates. 23 (1): 3–25. doi:10.1016/S0169-409X(96)00423-1. ISSN 0169-409X.
Tanada, Mikimasa; Tamiya, Minoru; Matsuo, Atsushi; Chiyoda, Aya; Takano, Koji; Ito, Toshiya; Irie, Machiko; Kotake, Tomoya; Takeyama, Ryuuichi; Kawada, Hatsuo; Hayashi, Ryuji; Ishikawa, Shiho; Nomura, Kenichi; Furuichi, Noriyuki; Morita, Yuya (2023-08-02). "Development of Orally Bioavailable Peptides Targeting an Intracellular Protein: From a Hit to a Clinical KRAS Inhibitor". Journal of the American Chemical Society. 145 (30): 16610–16620. Bibcode:2023JAChS.14516610T. doi:10.1021/jacs.3c03886. ISSN 0002-7863. PMID 37463267.
Merz, Manuel L.; Habeshian, Sevan; Li, Bo; David, Jean-Alexandre G. L.; Nielsen, Alexander L.; Ji, Xinjian; Il Khwildy, Khaled; Duany Benitez, Maury M.; Phothirath, Phoukham; Heinis, Christian (May 2024). "De novo development of small cyclic peptides that are orally bioavailable". Nature Chemical Biology. 20 (5): 624–633. doi:10.1038/s41589-023-01496-y. ISSN 1552-4469. PMC 11062899. PMID 38155304.
Linker, Stephanie M.; Schellhaas, Christian; Kamenik, Anna S.; Veldhuizen, Mac M.; Waibl, Franz; Roth, Hans-Jörg; Fouché, Marianne; Rodde, Stephane; Riniker, Sereina (2023-02-23). "Lessons for Oral Bioavailability: How Conformationally Flexible Cyclic Peptides Enter and Cross Lipid Membranes". Journal of Medicinal Chemistry. 66 (4): 2773–2788. doi:10.1021/acs.jmedchem.2c01837. ISSN 0022-2623. PMC 9969412. PMID 36762908.
Sethio, Daniel; Poongavanam, Vasanthanathan; Xiong, Ruisheng; Tyagi, Mohit; Duy Vo, Duc; Lindh, Roland; Kihlberg, Jan (2023-01-09). "Simulation Reveals the Chameleonic Behavior of Macrocycles". Journal of Chemical Information and Modeling. 63 (1): 138–146. doi:10.1021/acs.jcim.2c01093. ISSN 1549-9596. PMC 9832480. PMID 36563083.

hdl.handle.net (Global: 66^th place; English: 34^th place)

Vicente Martí-Centelles; Mrituanjay D. Pandey; M. Isabel Burguete; Santiago V. Luis (2015). "Macrocyclization Reactions: The Importance of Conformational, Configurational, and Template-Induced Preorganization". Chem. Rev. 115 (16): 8736–8834. doi:10.1021/acs.chemrev.5b00056. hdl:10234/154905. PMID 26248133.

iupac.org (Global: 1,291^st place; English: 1,832^nd place)

R. G. Jones; J. Kahovec; R. Stepto; E. S. Wilks; M. Hess; T. Kitayama; W. V. Metanomski (2008). IUPAC. Compendium of Polymer Terminology and Nomenclature, IUPAC Recommendations 2008 (the "Purple Book") (PDF). RSC Publishing, Cambridge, UK.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

Hamilton-Miller, JM (1973). "Chemistry and Biology of the Polyene Macrolide Antibiotics". Bacteriological Reviews. 37 (2): 166–196. doi:10.1128/br.37.2.166-196.1973. PMC 413810. PMID 4578757.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. PMC 10150360. PMID 37017513. Macrocycles are generally defined as organic molecules which contain a ring of at least 12 heavy atoms.
Zhichang Liu; Siva Krishna Mohan Nalluria; J. Fraser Stoddart (2017). "Surveying macrocyclic chemistry: from flexible crown ethers to rigid cyclophanes". Chemical Society Reviews. 46 (9): 2459–2478. doi:10.1039/c7cs00185a. PMID 28462968.
Vicente Martí-Centelles; Mrituanjay D. Pandey; M. Isabel Burguete; Santiago V. Luis (2015). "Macrocyclization Reactions: The Importance of Conformational, Configurational, and Template-Induced Preorganization". Chem. Rev. 115 (16): 8736–8834. doi:10.1021/acs.chemrev.5b00056. hdl:10234/154905. PMID 26248133.
Kamenik, Anna S.; Lessel, Uta; Fuchs, Julian E.; Fox, Thomas; Liedl, Klaus R. (2018). "Peptidic Macrocycles - Conformational Sampling and Thermodynamic Characterization". Journal of Chemical Information and Modeling. 58 (5): 982–992. doi:10.1021/acs.jcim.8b00097. PMC 5974701. PMID 29652495.
Ermert, Philipp (2017-10-25). "Design, Properties and Recent Application of Macrocycles in Medicinal Chemistry". CHIMIA International Journal for Chemistry. 71 (10): 678–702. doi:10.2533/chimia.2017.678. PMID 29070413.
Marsault, Eric; Peterson, Mark L. (2011-04-14). "Macrocycles Are Great Cycles: Applications, Opportunities, and Challenges of Synthetic Macrocycles in Drug Discovery". Journal of Medicinal Chemistry. 54 (7): 1961–2004. doi:10.1021/jm1012374. ISSN 0022-2623. PMID 21381769.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023-04-27). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. ISSN 0022-2623. PMC 10150360. PMID 37017513.
Zhang, Huiya; Chen, Shiyu (2022-01-05). "Cyclic peptide drugs approved in the last two decades (2001–2021)". RSC Chemical Biology. 3 (1): 18–31. doi:10.1039/D1CB00154J. ISSN 2633-0679. PMC 8729179. PMID 35128405.
Tanada, Mikimasa; Tamiya, Minoru; Matsuo, Atsushi; Chiyoda, Aya; Takano, Koji; Ito, Toshiya; Irie, Machiko; Kotake, Tomoya; Takeyama, Ryuuichi; Kawada, Hatsuo; Hayashi, Ryuji; Ishikawa, Shiho; Nomura, Kenichi; Furuichi, Noriyuki; Morita, Yuya (2023-08-02). "Development of Orally Bioavailable Peptides Targeting an Intracellular Protein: From a Hit to a Clinical KRAS Inhibitor". Journal of the American Chemical Society. 145 (30): 16610–16620. Bibcode:2023JAChS.14516610T. doi:10.1021/jacs.3c03886. ISSN 0002-7863. PMID 37463267.
Merz, Manuel L.; Habeshian, Sevan; Li, Bo; David, Jean-Alexandre G. L.; Nielsen, Alexander L.; Ji, Xinjian; Il Khwildy, Khaled; Duany Benitez, Maury M.; Phothirath, Phoukham; Heinis, Christian (May 2024). "De novo development of small cyclic peptides that are orally bioavailable". Nature Chemical Biology. 20 (5): 624–633. doi:10.1038/s41589-023-01496-y. ISSN 1552-4469. PMC 11062899. PMID 38155304.
Linker, Stephanie M.; Schellhaas, Christian; Kamenik, Anna S.; Veldhuizen, Mac M.; Waibl, Franz; Roth, Hans-Jörg; Fouché, Marianne; Rodde, Stephane; Riniker, Sereina (2023-02-23). "Lessons for Oral Bioavailability: How Conformationally Flexible Cyclic Peptides Enter and Cross Lipid Membranes". Journal of Medicinal Chemistry. 66 (4): 2773–2788. doi:10.1021/acs.jmedchem.2c01837. ISSN 0022-2623. PMC 9969412. PMID 36762908.
Sethio, Daniel; Poongavanam, Vasanthanathan; Xiong, Ruisheng; Tyagi, Mohit; Duy Vo, Duc; Lindh, Roland; Kihlberg, Jan (2023-01-09). "Simulation Reveals the Chameleonic Behavior of Macrocycles". Journal of Chemical Information and Modeling. 63 (1): 138–146. doi:10.1021/acs.jcim.2c01093. ISSN 1549-9596. PMC 9832480. PMID 36563083.

ncbi.nlm.nih.gov

Hamilton-Miller, JM (1973). "Chemistry and Biology of the Polyene Macrolide Antibiotics". Bacteriological Reviews. 37 (2): 166–196. doi:10.1128/br.37.2.166-196.1973. PMC 413810. PMID 4578757.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. PMC 10150360. PMID 37017513. Macrocycles are generally defined as organic molecules which contain a ring of at least 12 heavy atoms.
Kamenik, Anna S.; Lessel, Uta; Fuchs, Julian E.; Fox, Thomas; Liedl, Klaus R. (2018). "Peptidic Macrocycles - Conformational Sampling and Thermodynamic Characterization". Journal of Chemical Information and Modeling. 58 (5): 982–992. doi:10.1021/acs.jcim.8b00097. PMC 5974701. PMID 29652495.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023-04-27). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. ISSN 0022-2623. PMC 10150360. PMID 37017513.
Zhang, Huiya; Chen, Shiyu (2022-01-05). "Cyclic peptide drugs approved in the last two decades (2001–2021)". RSC Chemical Biology. 3 (1): 18–31. doi:10.1039/D1CB00154J. ISSN 2633-0679. PMC 8729179. PMID 35128405.
Merz, Manuel L.; Habeshian, Sevan; Li, Bo; David, Jean-Alexandre G. L.; Nielsen, Alexander L.; Ji, Xinjian; Il Khwildy, Khaled; Duany Benitez, Maury M.; Phothirath, Phoukham; Heinis, Christian (May 2024). "De novo development of small cyclic peptides that are orally bioavailable". Nature Chemical Biology. 20 (5): 624–633. doi:10.1038/s41589-023-01496-y. ISSN 1552-4469. PMC 11062899. PMID 38155304.
Linker, Stephanie M.; Schellhaas, Christian; Kamenik, Anna S.; Veldhuizen, Mac M.; Waibl, Franz; Roth, Hans-Jörg; Fouché, Marianne; Rodde, Stephane; Riniker, Sereina (2023-02-23). "Lessons for Oral Bioavailability: How Conformationally Flexible Cyclic Peptides Enter and Cross Lipid Membranes". Journal of Medicinal Chemistry. 66 (4): 2773–2788. doi:10.1021/acs.jmedchem.2c01837. ISSN 0022-2623. PMC 9969412. PMID 36762908.
Sethio, Daniel; Poongavanam, Vasanthanathan; Xiong, Ruisheng; Tyagi, Mohit; Duy Vo, Duc; Lindh, Roland; Kihlberg, Jan (2023-01-09). "Simulation Reveals the Chameleonic Behavior of Macrocycles". Journal of Chemical Information and Modeling. 63 (1): 138–146. doi:10.1021/acs.jcim.2c01093. ISSN 1549-9596. PMC 9832480. PMID 36563083.

orgsyn.org (Global: 3,535^th place; English: 4,321^st place)

Pedersen, Charles J. (1988). "Macrocyclic Polyethers: Dibenzo-18-Crown-6 Polyether and Dicyclohexyl-18-Crown-6 Polyether". Organic Syntheses; Collected Volumes, vol. 6, p. 395.

sciencedirect.com (Global: 137^th place; English: 146^th place)

Lipinski, Christopher A.; Lombardo, Franco; Dominy, Beryl W.; Feeney, Paul J. (1997-01-15). "Experimental and computational approaches to estimate solubility and permeability in drug discovery and development settings". Advanced Drug Delivery Reviews. In Vitro Models for Selection of Development Candidates. 23 (1): 3–25. doi:10.1016/S0169-409X(96)00423-1. ISSN 0169-409X.

srce.hr (Global: 1,163^rd place; English: 1,174^th place)

hrcak.srce.hr

H. Höcker (2009). "Cyclic and Macrocyclic OrganicCompounds – a Personal Review in Honor of Professor Leopold Ružička". Cyclic and Macrocyclic Organic Compounds, Kem. Ind. 58: 73–80.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Marsault, Eric; Peterson, Mark L. (2011-04-14). "Macrocycles Are Great Cycles: Applications, Opportunities, and Challenges of Synthetic Macrocycles in Drug Discovery". Journal of Medicinal Chemistry. 54 (7): 1961–2004. doi:10.1021/jm1012374. ISSN 0022-2623. PMID 21381769.
Garcia Jimenez, Diego; Poongavanam, Vasanthanathan; Kihlberg, Jan (2023-04-27). "Macrocycles in Drug Discovery─Learning from the Past for the Future". Journal of Medicinal Chemistry. 66 (8): 5377–5396. doi:10.1021/acs.jmedchem.3c00134. ISSN 0022-2623. PMC 10150360. PMID 37017513.
Zhang, Huiya; Chen, Shiyu (2022-01-05). "Cyclic peptide drugs approved in the last two decades (2001–2021)". RSC Chemical Biology. 3 (1): 18–31. doi:10.1039/D1CB00154J. ISSN 2633-0679. PMC 8729179. PMID 35128405.
Lipinski, Christopher A.; Lombardo, Franco; Dominy, Beryl W.; Feeney, Paul J. (1997-01-15). "Experimental and computational approaches to estimate solubility and permeability in drug discovery and development settings". Advanced Drug Delivery Reviews. In Vitro Models for Selection of Development Candidates. 23 (1): 3–25. doi:10.1016/S0169-409X(96)00423-1. ISSN 0169-409X.
Tanada, Mikimasa; Tamiya, Minoru; Matsuo, Atsushi; Chiyoda, Aya; Takano, Koji; Ito, Toshiya; Irie, Machiko; Kotake, Tomoya; Takeyama, Ryuuichi; Kawada, Hatsuo; Hayashi, Ryuji; Ishikawa, Shiho; Nomura, Kenichi; Furuichi, Noriyuki; Morita, Yuya (2023-08-02). "Development of Orally Bioavailable Peptides Targeting an Intracellular Protein: From a Hit to a Clinical KRAS Inhibitor". Journal of the American Chemical Society. 145 (30): 16610–16620. Bibcode:2023JAChS.14516610T. doi:10.1021/jacs.3c03886. ISSN 0002-7863. PMID 37463267.
Merz, Manuel L.; Habeshian, Sevan; Li, Bo; David, Jean-Alexandre G. L.; Nielsen, Alexander L.; Ji, Xinjian; Il Khwildy, Khaled; Duany Benitez, Maury M.; Phothirath, Phoukham; Heinis, Christian (May 2024). "De novo development of small cyclic peptides that are orally bioavailable". Nature Chemical Biology. 20 (5): 624–633. doi:10.1038/s41589-023-01496-y. ISSN 1552-4469. PMC 11062899. PMID 38155304.
Linker, Stephanie M.; Schellhaas, Christian; Kamenik, Anna S.; Veldhuizen, Mac M.; Waibl, Franz; Roth, Hans-Jörg; Fouché, Marianne; Rodde, Stephane; Riniker, Sereina (2023-02-23). "Lessons for Oral Bioavailability: How Conformationally Flexible Cyclic Peptides Enter and Cross Lipid Membranes". Journal of Medicinal Chemistry. 66 (4): 2773–2788. doi:10.1021/acs.jmedchem.2c01837. ISSN 0022-2623. PMC 9969412. PMID 36762908.
Sethio, Daniel; Poongavanam, Vasanthanathan; Xiong, Ruisheng; Tyagi, Mohit; Duy Vo, Duc; Lindh, Roland; Kihlberg, Jan (2023-01-09). "Simulation Reveals the Chameleonic Behavior of Macrocycles". Journal of Chemical Information and Modeling. 63 (1): 138–146. doi:10.1021/acs.jcim.2c01093. ISSN 1549-9596. PMC 9832480. PMID 36563083.

Macrocycle (English Wikipedia)

acs.org (Global: 865th place; English: 887th place)

pubs.acs.org

adsabs.harvard.edu (Global: 14th place; English: 9th place)

ui.adsabs.harvard.edu

doi.org (Global: 2nd place; English: 2nd place)

hdl.handle.net (Global: 66th place; English: 34th place)

iupac.org (Global: 1,291st place; English: 1,832nd place)

nih.gov (Global: 5th place; English: 5th place)