title: Commercial health insurance enrollment.
authors: W F
authors: WF
authors: Seward
mesh_terms: D003625:Data Collection; D018588:Fee-for-Service Plans / Q000706:statistics & numerical data*; D005843:Geography; D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D011243:Preferred Provider Organizations / Q000706:statistics & numerical data*; D014481:United States