By the numbers. Physicians.
D004470:Economics, Medical / Q000706:statistics & numerical data* / Q000639:trends; D005260:Female; D006123:Group Practice / Q000191:economics / Q000706:statistics & numerical data; D019538:Health Care Surveys; D006801:Humans; D007182:Income / Q000706:statistics & numerical data; D008297:Male; D008511:Medicine / Q000706:statistics & numerical data; D012577:Schools, Medical / Q000706:statistics & numerical data; D013038:Specialization; D014481:United States