Improving access to medical care in underserved areas: the role of group practice.
D000704:Analysis of Variance; D006123:Group Practice; D006297:Health Services Accessibility; D008507:Medically Underserved Area; D010819:Physician's Role; D010820:Physicians / Q000600:supply & distribution; D012423:Rural Health; D014481:United States; D014504:Urban Health