Authors: S R Cummings; R J Richard; C L Duncan; B Hansen; R Vander Martin; B Gerbert; T J Coates Journal: J Gen Intern Med Date: 1989 Nov-Dec Impact factor: 5.128
Authors: S R Cummings; T J Coates; R J Richard; B Hansen; E G Zahnd; R VanderMartin; C Duncan; B Gerbert; A Martin; M J Stein Journal: Ann Intern Med Date: 1989-04-15 Impact factor: 25.391
Authors: J K Ockene; J Kristeller; R Goldberg; T L Amick; P S Pekow; D Hosmer; M Quirk; K Kalan Journal: J Gen Intern Med Date: 1991 Jan-Feb Impact factor: 5.128