RT Journal Article SR Electronic T1 Subject Index Volume 4,1991 JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 481 OP 489 DO 10.3122/jabfm.4.6.481 VO 4 IS 6 YR 1991 UL http://www.jabfm.org/content/4/6/481.abstract AB