An emergency medical service system--analysis of workload.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000552:Ambulances / Q000706:statistics & numerical data; D002140:California; D002648:Child; D002675:Child, Preschool; D003710:Demography; D004630:Emergencies; D004632:Emergency Medical Services; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006275:Health Facility Planning; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008875:Middle Aged; D008962:Models, Theoretical; D010361:Patients