00337nam a22001457a 4500020001500000082001700015100001600032245003000048250001200078260003000090300001300120654002300133700001600156700001900172  a0071240179  a616.025bJOH  aMa, O. John  aEmergency medicine manual  a6th ed.  aBostonbMcGraw Hillc2004  a1-977 p.  aEmergency medicine  aMa, O. John  aCline, David M