Selectivity among large employer group members of a prepaid group practice model HMO: the relationship between employee premium contribution, medical care utilization and market penetration.
D003256:Community Participation; D003669:Deductibles and Coinsurance; D006264:Health Benefit Plans, Employee / Q000191:economics*; D006279:Health Maintenance Organizations / Q000191:economics*; D006761:Hospitals / Q000706:statistics & numerical data*; D007348:Insurance, Health / Q000191:economics*; D008389:Marketing of Health Services; D009519:New York City