RT Journal Article SR Electronic T1 Books Received JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 69 OP 70 DO 10.3122/jabfm.1.1.69 VO 1 IS 1 YR 1988 UL http://www.jabfm.org/content/1/1/69.abstract AB