Doctor choice equals happiness in managed care.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002140:California; D002755:Choice Behavior; D003430:Cross-Sectional Studies; D006279:Health Maintenance Organizations / Q000458:organization & administration*; D006801:Humans; D008875:Middle Aged; D010358:Patient Participation; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D010817:Physician-Patient Relations; D010820:Physicians