Big guys getting bigger: study. Small doc practices still lead, but numbers shrinking.
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A
D002322:Career Mobility; D006123:Group Practice / Q000706:statistics & numerical data / Q000639:trends*; D019538:Health Care Surveys; D011331:Private Practice / Q000706:statistics & numerical data / Q000639:trends*; D011785:Quality Assurance, Health Care; D014481:United States