Authors: E M Kilbourne; L A Swygert; R M Philen; R K Sun; S B Auerbach; L Miller; D E Nelson; H Falk Journal: Ann Intern Med Date: 1990-01-15 Impact factor: 25.391
Authors: B Freundlich; V P Werth; A H Rook; C R O'Connor; H R Schumacher; J J Leyden; P D Stolley Journal: Ann Intern Med Date: 1990-05-15 Impact factor: 25.391