RT Journal Article SR Electronic T1 Differential Diagnosis of Common Complaints. 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 327 OP 327 DO 10.3122/jabfm.6.3.327a VO 6 IS 3 A1 Zervanos, Nikitas J. YR 1993 UL http://www.jabfm.org/content/6/3/327.2.abstract AB