title: Dangling modifiers. Staff-model HMOs are dying off. Struggling in hostile markets, their medical groups try to change old habits by putting more pay at risk.
authors.forename: M
authors.initials: M
authors.lastname: Hagland
mesh_terms: D002140:California; D006279:Health Maintenance Organizations / Q000458:organization & administration* / Q000639:trends; D008404:Massachusetts; D008503:Medical Staff; D017146:Models, Organizational; D011362:Professional Corporations; D014481:United States