Authors: P R Williamson; R C Smith; D E Kern; M Lipkin; L R Barker; R B Hoppe; J Florek Journal: J Gen Intern Med Date: 1992 Mar-Apr Impact factor: 5.128
Authors: R C Smith; G Osborn; R B Hoppe; J S Lyles; L Van Egeren; R Henry; D Sego; P Alguire; B Stoffelmayr Journal: J Gen Intern Med Date: 1991 Nov-Dec Impact factor: 5.128