title: Special report. Strategies for assessing HMOs. An HMO primer.
abstract: Not all HMOs are alike. This handy reference spells out the four basic models and their advantages and disadvantages.
authors: F L
authors: FL
authors: Ham
mesh_terms: D005069:Evaluation Studies as Topic; D006279:Health Maintenance Organizations / Q000458:organization & administration*; D007193:Independent Practice Associations / Q000458:organization & administration*; D008503:Medical Staff / Q000458:organization & administration; D008962:Models, Theoretical; D014481:United States