Demographic and utilization characteristics of HMO disenrollees.
D003625:Data Collection; D003710:Demography; D005069:Evaluation Studies as Topic; D005260:Female; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States