title: The designation of health service areas.
mesh_terms: D005843:Geography; D006077:Government Agencies; D006285:Health Planning; D006801:Humans; D007883:Legislation, Medical; D011153:Population; D011366:Professional Review Organizations; D012040:Regional Health Planning; D014481:United States; D014483:United States Dept. of Health and Human Services; D014505:Urban Population