911 access and trauma deaths: a complex association.
Rubin
J M
JM
Pirrallo
R G
RG
D000552:Ambulances; D003625:Data Collection; D004632:Emergency Medical Services / Q000706:statistics & numerical data*; D006801:Humans; D015999:Multivariate Analysis; D014947:Wounds and Injuries / Q000401:mortality*