Authors: Robert Graham; Richard G Roberts; Daniel J Ostergaard; Norman B Kahn; Perry A Pugno; Larry A Green Journal: JAMA Date: 2002-09-04 Impact factor: 56.272
Authors: S Greenfield; E C Nelson; M Zubkoff; W Manning; W Rogers; R L Kravitz; A Keller; A R Tarlov; J E Ware Journal: JAMA Date: 1992-03-25 Impact factor: 56.272
Authors: Barbara Starfield; Klaus W Lemke; Terence Bernhardt; Steven S Foldes; Christopher B Forrest; Jonathan P Weiner Journal: Ann Fam Med Date: 2003 May-Jun Impact factor: 5.166