RT Journal Article SR Electronic T1 Clinical Epidemiology: A Basic Science for Clinical Medicine. Second edition JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 660 OP 660 DO 10.3122/jabfm.5.6.660 VO 5 IS 6 A1 Reed, Richard L. YR 1992 UL http://www.jabfm.org/content/5/6/660.abstract AB