PMID (PubMed ID) is the unique identifier for a publication's abstract in PubMed.
PMCID (PubMed Central ID) is the unique identifier for a free complete article (once it is publicly available) in PubMed Central.
PubMed and PubMed Central, produced by the U.S. National Library of Medicine, are text archives of biomedical and life sciences literature.
A DOI (Digital Object Identifier) is a publisher’s unique identifier for a publication. The prefix http://dx.doi.org/ is presumed. Publishers may charge for access.
Borovikov E, Vajda S, Gill MJ.Face Match for Family Reunification: Real-World Face Image Retrieval International Journal of Computer Vision and Image Processing. DOI: 10.4018/IJCVIP.2017040102.
Locatis CN, Gaines C, Liu WL, Gill MJ, Ackerman MJ.Lessons learned from ten years of distance learning outreach. J Med Libr Assoc. 2015 Apr;103(2):78-82. doi: 10.3163/1536-5050.103.2.004.
Locatis C, Gaines C, Liu W, Gill MJ.Extending a Blended Education Programme to Native American High School Students in Alaska. J Vis Commun Med. 2009 Jan;32(1):8-13.
Hauser SE, Demner-Fushman D, Jacobs JL, Humphrey SM, Ford G, Thoma GR.Using Wireless Handheld Computers to Seek Information at the Point of Care: An Evaluation by Clinicians. J Am Med Inform Assoc. 2007 Nov-Dec;14(6):807-15. Epub 2007 Aug 21.
Hauser SE, Demner-Fushman D, Ford G, Thoma GR.PubMed on Tap: Discovering Design Principles for Online Information Delivery to Handheld Computers Stud Health Technol Inform. 2004;107(Pt 2):1430-3.