RT Journal Article SR Electronic T1 Ex Concilio JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 291 OP 291 DO 10.3122/jabfm.2.4.291 VO 2 IS 4 A1 Pisacano, Nicholas J. YR 1989 UL http://www.jabfm.org/content/2/4/291.abstract AB