Authors: C S Thomas; G Mellsop; K Callender; J Crawshaw; P M Ellis; A Hall; J MacDonald; P Silfverskiold; S Romans-Clarkson Journal: Med Educ Date: 1993-09 Impact factor: 6.251
Authors: P L Stillman; D B Swanson; S Smee; A E Stillman; T H Ebert; V S Emmel; J Caslowitz; H L Greene; M Hamolsky; C Hatem Journal: Ann Intern Med Date: 1986-11 Impact factor: 25.391