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Hi, Also I found this article , is the attached PDF. But I do not know if he is the first to talk about it. Hugs Mariana Fernandes Librarian 2015-05-13 14:20 GMT-03:00 Bill Cayley, Jr < [log in to unmask]>: > The earliest reference I can find seems to be this one, though I can't > open the PDF to see if it refers back to something earlier: > Oxman AD, Sackett DL, Guyatt GH. Users' guides to the medical literature. > I. > How to get started. The Evidence-Based Medicine Working Group. JAMA. 1993 > Nov > 3;270(17):2093-5. PubMed PMID: 8411577. > > http://www.ncbi.nlm.nih.gov/pubmed/8411577 > > Bill Cayley, Jr, MD MDiv > [log in to unmask] > [log in to unmask] > http://twitter.com/bcayley > Work: 715.286.2270 > Pager: 715.838.7940 > Home: 715.830.0932 > Mobile: 715.828.4636 > > "*I think some of the most celebrated moments in human achievement should > be those times when everything is going against a person and they are down > in the dumps but they simply choose to get up. That's real greatness." -- > Ryan Hall* > > > > On Wednesday, May 13, 2015 11:07 AM, Jon Brassey < > [log in to unmask]> wrote: > > > Hi All, > > I've just been asked about the origins of PICO and I have no idea! I'm > hoping someone will know. > > Who devised/first used the phrase and is there an original paper > describing its application? > > Best wishes > > jon > > -- *Mariana FernandesBibliotecária - Especialista em Gestao Estratégica da Informação * *Mestranda em Ciencia da Informação - **ECI / UFMG*