RT Journal Article SR Electronic T1 Manual of Emergency Medicine Diagnosis and Treatment. 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 120 OP 121 DO 10.3122/jabfm.5.1.120a VO 5 IS 1 A1 Norman, Lee A. YR 1992 UL http://www.jabfm.org/content/5/1/120.2.abstract AB