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Citing biomedical documents - National Library of Medicine (NLM) style

Citing parts of Web sites
National Library of Medicine (NLM) style

Patrias K. Citing medicine: the NLM style guide for authors, editors, and publishers [Internet]. 2nd ed. Wendling DL, technical editor. Bethesda (MD): National Library of Medicine (US); 2007 [updated 2009 Oct 21; cited 2010 Apr 30]. Available from: http://www.nlm.nih.gov/citingmedicine

Components/elements listed in the order they should appear in a reference: (R) = required, (O) = optional

Homepage (R) | Title (R) | Date of Publication (R) | Date of Update/Revision (R) | Date of Citation (R) | Location (Pagination) (R) | Availability (R) | Language (R) | Notes (O)

  • Standard part of a Web site
    • AMA: helping doctors help patients [Internet]. Chicago: American Medical Association; c1995-2007. AMA launches exclusive partnership with the ReachMD Channel for medical professionals; 2007 Mar 26 [cited 2007 Mar 28]; [about 2 screens]. Available from: http://www.ama-assn.org/ama/pub/category/17469.html
    • Chlamy Center: an Online Informatics Resource for Chlamydomonas [Internet]. Durham (NC): Duke University, Department of Biology; [modified 2007 Mar 8]. Core collections; [modified 2006 Jan 25; cited 2007 Mar 27]; [about 3 screens]. Available from: http://jupiter.biology.duke.edu/strains.html
  • Part of a Web site with name and number
    • Health Canada = Sante Canada [Internet]. Ottawa (ON): Health Canada; [updated 2007 Mar 28]. Information update 2007-31, Health Canada's revised assessment of mercury in fish enhances protection while reflecting advice in Canada's Food Guide = Mise a jour 2007-31, Les normes revisees de Sante Canada sur le mercure dans le poisson assurent une meilleure protection et refletent les conseils du Guide alimentaire canadien; 2007 Mar 28 [cited 2007 Mar 29]; [about 3 screens]. Available from: http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/2007/2007_31_e.html ; http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/2007/2007_31_f.html English, French.
    • Max-Planck-Institut fur Experimentelle Medizin [Internet]. Gottingen (Germany): Max-Planck-Gesellschaft; c2006. Presseinformation 2006 (159), Wenn Nervenzellen kontaktscheu sind; 2006 Sep 21 [cited 2007 Mar 28]; [174 KB]. Available from: http://www.mpg.de/bilderBerichteDokumente/dokumentation/ pressemitteilungen/2006/pressemitteilung20060920/. German.
  • Part of a Web site with name added
    • fruits & veggies - more matters™ [Internet]. [place unknown]: Produce for Better Health Foundation; c2007. [Chart], Ways to get more; [cited 2007 Mar 27]; [about 3 screens]. Available from: http://www.fruitsandveggiesmorematters.org/?page_id=113&iCat=22
    • NIAAA: National Institute on Alcohol Abuse and Alcoholism of the National Institutes of Health [Internet]. Bethesda (MD): The Institute; 2004 Jun 10 [modified 2007 Feb 28]. [Table], Percent who drink beverage alcohol, by gender, 1939-2003; [updated 2004 Mar; cited 2007 Mar 28]; [about 2 screens]. Available from: http://www.niaaa.nih.gov/Resources/DatabaseResources/QuickFacts/ AlcoholConsumption/PercentAlcoholGender.htm
    • NIH SeniorHealth [Internet]. Bethesda (MD): National Institute on Aging (US); 2002 Mar 19 [reviewed 2007 Feb 16]. [Video], Diagnosing Alzheimer's disease; 2002 Mar 19 [reviewed 2007 Mar 12; cited 2007 Mar 28]; [2 min., 31 sec.]. Available from: http://nihseniorhealth.gov/alzheimersdisease/symptoms/08.html
  • Part of a Web site with title ending in punctuation other than a period
    • NCAM: National Center for Complementary and Alternative Medicine [Internet]. Bethesda (MD): The Center; [modified 2007 Mar 22]. What is CAM?; [modified 2007 Feb 12; cited 2007 Mar 29]; [about 5 p.]. Available from: http://nccam.nih.gov/health/whatiscam/.
  • Part of a Web site not in English
    • Max-Planck-Institut fur Experimentelle Medizin [Internet]. Gottingen (Germany): Max-Planck-Gesellschaft; c2006. Presseinformation 2006 (159), Wenn Nervenzellen kontaktscheu sind; 2006 Sep 21 [cited 2007 Mar 28]; [174 KB]. Available from: http://www.mpg.de/bilderBerichteDokumente/dokumentation/ pressemitteilungen/2006/pressemitteilung20060920/. German.
  • Part of a Web site not in English with translation
    • Max-Planck-Institut fur Experimentelle Medizin [Internet]. Gottingen (Germany): Max-Planck-Gesellschaft; c2006. Presseinformation 2006 (159), Wenn Nervenzellen kontaktscheu sind [Press release 2006 (159), When nerve cells can't make contact]; 2006 Sep 21 [cited 2007 Mar 28]; [174 KB]. Available from: http://www.mpg.de/bilderBerichteDokumente/dokumentation/ pressemitteilungen/2006/pressemitteilung20060920/. German.
  • Part of a Web site with equal text in two or more languages
    • Health Canada = Sante Canada [Internet]. Ottawa (ON): Health Canada; [updated 2007 Mar 28]. Information update 2007-31, Health Canada's revised assessment of mercury in fish enhances protection while reflecting advice in Canada's Food Guide = Mise a jour 2007-31, Les normes revisees de Sante Canada sur le mercure dans le poisson assurent une meilleure protection et refletent les conseils du Guide alimentaire canadien; 2007 Mar 28 [cited 2007 Mar 29]; [about 3 screens]. Available from: http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/2007/2007_31_e.html ; http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/2007/2007_31_f.html English, French.
  • Part of a Web site with a date of publication separate from the date of the Web site
    • AMA: helping doctors help patients [Internet]. Chicago: American Medical Association; c1995-2007. AMA launches exclusive partnership with the ReachMD Channel for medical professionals; 2007 Mar 26 [cited 2007 Mar 28]; [about 2 screens]. Available from: http://www.ama-assn.org/ama/pub/category/17469.html
    • StatePublicHealth.org [Internet]. Washington: ASTHO; [cited 2007 Mar 27]. Hurricanes and your health; 2005 Fall [cited 2007 Mar 27]; [about 2 screens]. Available from: http://statepublichealth.org/?template=view_story.php&fs_id=20
  • Part of a Web site with date(s) of update/revision
    • Chlamy Center: an Online Informatics Resource for Chlamydomonas [Internet]. Durham (NC): Duke University, Department of Biology; [modified 2007 Mar 8]. Core collections; [modified 2006 Jan 25; cited 2007 Mar 27]; [about 3 screens]. Available from: http://jupiter.biology.duke.edu/strains.html
    • AMA: helping doctors help patients [Internet]. Chicago: American Medical Association; c1995-2007. Medical liability crisis map; [updated 2006 Dec 20; cited 2007 Mar 28]. [about 2 screens]. Available from: http://www.ama-assn.org/ama/noindex/category/11871.html
    • Lab Tests Online [Internet]. Washington: American Association for Clinical Chemistry; c2001-2007. ACT; [reviewed 2004 Dec 7; cited 2007 Mar 27]; [about 8 screens]. Available from: http://www.labtestsonline.org/understanding/analytes/act/glance.html
    • cancerbackup: informing, understanding, supporting [Internet]. London: Cancerbackup; c2003. Treating ovarian cancer with chemotherapy; [reviewed 2006 Jul 1; modified 2006 Aug 31; cited 2007 Feb 21]; [about 4 screens]. Available from: http://www.cancerbackup.org.uk/Cancertype/Ovary/Treatment/Chemotherapy
  • Part of a Web site with date of citation only
    • Complementary/Integrative Medicine [Internet]. Houston: University of Texas, M. D. Anderson Cancer Center; c2007. Bladder cancer; [cited 2007 Mar 27]. Available from: http://www.mdanderson.org/diseases/bladder/.
  • Part of a Web site with traditional page numbers for location (pagination)
    • the American Academy of Pain Medicine: The Physician's Voice in Pain Medicine [Internet]. Glenview (IL): The Academy; c2007. Consent for chronic opioid therapy; 1999 [cited 2007 Feb 21]; [2 p.]. Available from: http://www.painmed.org/productpub/statements/pdfs/opioid_consent_form.pdf
  • Part of a Web site with location (pagination) estimated as page numbers
    • NCAM: National Center for Complementary and Alternative Medicine [Internet]. Bethesda (MD): The Center; [modified 2007 Mar 22]. What is CAM?; [modified 2007 Feb 12; cited 2007 Mar 29]; [about 5 p.]. Available from: http://nccam.nih.gov/health/whatiscam/.
  • Part of a Web site with location (pagination) estimated as number of screens
    • NursingWorld: Official Web site of the American Nurses Association [Internet]. Silver Spring (MD): American Nurses Association, Inc.; c2007. American Nurse Today; [cited 2007 Mar 27]; [about 3 screens]. Available from: http://www.ana.org/anajournal/.
  • Part of a Web site with location (pagination) shown as number of paragraphs
    • Complementary/Integrative Medicine [Internet]. Houston: University of Texas, M. D. Anderson Cancer Center; c2007. Energy therapies; [cited 2007 Feb 21]; [3 paragraphs]. Available from: http://www.mdanderson.org/departments/cimer/dIndex.cfm?pn=7B632E4A-56B2-11D5-812100508B603A14
  • Part of a Web site with location (pagination) shown as number of bytes
    • Max-Planck-Institut fur Experimentelle Medizin [Internet]. Gottingen (Germany): Max-Planck-Gesellschaft; c2006. Presseinformation 2006 (159), Wenn Nervenzellen kontaktscheu sind; 2006 Sep 21 [cited 2007 Mar 28]; [174 KB]. Available from: http://www.mpg.de/bilderBerichteDokumente/dokumentation/ pressemitteilungen/2006/pressemitteilung20060920/. German.
  • Part of a Web site with hyperlinks so location (pagination) cannot be provided
    • MedlinePlus: Trusted Health Information for You [Internet]. Bethesda (MD): National Library of Medicine (US); [updated 2007 Mar 26]. E. coli infections; [reviewed 2007 Feb 12; updated 2007 Mar 26; cited 2007 Mar 28]. Available from: http://www.nlm.nih.gov/medlineplus/ecoliinfections.html
    • NHS in England [Internet]. London: NHS Connecting for Health; [updated 2007 Mar 27]. History of the NHS; [cited 2007 Mar 28]. Available from: http://www.nhs.uk/england/aboutTheNHS/history/default.cmsx
  • Part of a Web site that is a video clip
    • NIH SeniorHealth [Internet]. Bethesda (MD): National Institute on Aging (US); 2002 Mar 19 [reviewed 2007 Feb 16]. [Video], Diagnosing Alzheimer's disease; 2002 Mar 19 [reviewed 2007 Mar 12; cited 2007 Mar 28]; [2 min., 31 sec.]. Available from: http://nihseniorhealth.gov/alzheimersdisease/symptoms/08.html
    • The Virtual Body = El Cuerpo Virtual [Internet]. [place unknown]: HCA; c2001. [Video], Animated heart; [cited 2007 Feb 21]; [about 5 sec.]. Available from: http://www.medtropolis.com/vbody.asp by selecting heart from the menu. English, Spanish.
  • Part of a Web site with URL not directly addressable
    • The Virtual Body = El Cuerpo Virtual [Internet]. [place unknown]: HCA; c2001. [Video], Animated heart; [cited 2007 Feb 21]; [about 5 sec.]. Available from: http://www.medtropolis.com/vbody.asp by selecting heart from the menu. English, Spanish.
  • Part of a Web site with multiple URLs
    • Health Canada = Sante Canada [Internet]. Ottawa (ON): Health Canada; [updated 2007 Mar 28]. Information update 2007-31, Health Canada's revised assessment of mercury in fish enhances protection while reflecting advice in Canada's Food Guide = Mise a jour 2007-31, Les normes revisees de Sante Canada sur le mercure dans le poisson assurent une meilleure protection et refletent les conseils du Guide alimentaire canadien; 2007 Mar 28 [cited 2007 Mar 29]; [about 3 screens]. Available from: http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/2007/2007_31_e.html ; http://hc-sc.gc.ca/ahc-asc/media/advisories-avis/2007/2007_31_f.html English, French.
  • Part of a Web site with optional system requirements
    • NIH SeniorHealth [Internet]. Bethesda (MD): National Institute on Aging (US); 2002 Mar 19 [reviewed 2007 Feb 16]. [Video], Diagnosing Alzheimer's disease; 2002 Mar 19 [reviewed 2007 Mar 12; cited 2007 Mar 28]; [2 min., 31 sec.]. Available from: http://nihseniorhealth.gov/alzheimersdisease/symptoms/08.html System Requirements: Windows Media Player for PC or QuickTime Player for MAC.
  • Part of a Web site with supplemental note included
    • The American Academy of Pain Medicine: the Physician's Voice in Pain Medicine [Internet]. Glenview (IL): The Academy; c2007. Consent for chronic opioid therapy; 1999 [cited 2007 Feb 21]; [2 p.]. Available from: http://www.painmed.org/productpub/statements/pdfs/opioid_consent_form.pdf Approved by the AAPM Executive Committee on January 14, 1999.
    • StatePublicHealth.org [Internet]. Washington: ASTHO; [cited 2007 Mar 27]. Hurricanes and your health; 2005 Fall [cited 2007 Mar 27]; [about 2 screens]. Available from: http://statepublichealth.org/?template=view_story.php&fs_id=20 Sponsored by the Robert Wood Johnson Foundation, National Governors Association, and the Association of State and Territorial Health Officials.