Health services research at the Columbia Medical Plan: a decade of experience.
D000046:Academic Medical Centers / Q000458:organization & administration; D005180:Faculty, Medical; D006279:Health Maintenance Organizations / Q000458:organization & administration*; D006302:Health Services Research / Q000458:organization & administration*; D008396:Maryland; D008962:Models, Theoretical; D009935:Organizational Affiliation / Q000639:trends