Gimme a break! Positioning issues for medigaps.
D000368:Aged; D001290:Attitude; D003625:Data Collection; D006279:Health Maintenance Organizations; D006299:Health Services for the Aged / Q000191:economics*; D006801:Humans; D007348:Insurance, Health; D008389:Marketing of Health Services; D006278:Medicare / Q000191:economics*; D009519:New York City