title: From movement to industry: the growth of HMOs.
authors.forename: L R
authors.initials: LR
authors.lastname: Gruber
authors.forename: M
authors.initials: M
authors.lastname: Shadle
authors.forename: C L
authors.initials: CL
authors.lastname: Polich
mesh_terms: D005544:Forecasting; D006279:Health Maintenance Organizations / Q000639:trends*; D006291:Health Policy / Q000639:trends*; D006801:Humans; D014481:United States