title: Hospital vs. insurer. Armed and ready. Hospitals' HMO contracting units bigger, bolder.
authors.forename: B
authors.initials: B
authors.lastname: Kirchheimer
mesh_terms: D006279:Health Maintenance Organizations / Q000191:economics*; D006777:Hospitals, Proprietary / Q000191:economics*; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence*; D007373:Interinstitutional Relations; D013997:Time Factors; D014481:United States