EMERGENCY CARE AND MEDICAL TRANSPORTATION IN THE EASTERN QUARTER OF THE UNITED STATES OF AMERICA, 1963.
D000552:Ambulances; D004630:Emergencies; D004632:Emergency Medical Services; D004638:Emergency Treatment; D006801:Humans; D009518:New York; D012237:Rhode Island; D014481:United States
AMBULANCES; EMERGENCIES; NEW YORK; RHODE ISLAND; UNITED STATES