RT Journal Article SR Electronic T1 Gellis & Kagan's Current Pediatric Therapy. Volume 16 JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 507 OP 508 DO 10.3122/jabfm.12.6.507c VO 12 IS 6 A1 Davis, Leland J. YR 1999 UL http://www.jabfm.org/content/12/6/507.3.abstract AB