PT - JOURNAL ARTICLE AU - Mayer, Dan M. TI - Emergency Medical Services AID - 10.3122/jabfm.5.2.236 DP - 1992 Mar 01 TA - The Journal of the American Board of Family Practice PG - 236--236 VI - 5 IP - 2 4099 - http://www.jabfm.org/content/5/2/236.short 4100 - http://www.jabfm.org/content/5/2/236.full SO - J Am Board Fam Med1992 Mar 01; 5