Potential patients and loyal users: access to care in community-hospital-sponsored group practices.
D000704:Analysis of Variance; D002391:Catchment Area, Health; D006123:Group Practice / Q000458:organization & administration*; D006297:Health Services Accessibility; D006764:Hospitals, Community / Q000458:organization & administration*; D012959:Socioeconomic Factors; D014481:United States