title: Medicare+Choice individual and group enrollment: 2001 and 2002.
authors.affiliation: Actuarial Research Corporation, 5513 Twin Knolls Road, Suite 213, Columbia, MD 21045, USA. grh@aresearch.com
authors.forename: Geoffrey R
authors.initials: GR
authors.lastname: Hileman
authors.forename: Kerry E
authors.initials: KE
authors.lastname: Moroz
authors.forename: C William
authors.initials: CW
authors.lastname: Wrightson
authors.forename: Suhn K
authors.initials: SK
authors.lastname: Kim
mesh_terms: D000368:Aged; D003258:Consumer Behavior / Q000706:statistics & numerical data*; D003284:Contract Services; D006264:Health Benefit Plans, Employee / Q000458:organization & administration*; D019538:Health Care Surveys; D006279:Health Maintenance Organizations / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D020398:Medicare Part C / Q000191:economics / Q000706:statistics & numerical data*; D008875:Middle Aged; D014481:United States