By the numbers. Physicians.
D000328:Adult; D000368:Aged; D003625:Data Collection; D004470:Economics, Medical / Q000706:statistics & numerical data / Q000639:trends; D005260:Female; D006801:Humans; D007182:Income / Q000706:statistics & numerical data / Q000639:trends; D008297:Male; D008505:Medical Staff, Hospital / Q000706:statistics & numerical data / Q000639:trends; D008875:Middle Aged; D010560:Personnel Selection / Q000706:statistics & numerical data; D010820:Physicians / Q000191:economics / Q000706:statistics & numerical data* / Q000600:supply & distribution; D013996:Time and Motion Studies; D014481:United States; D016526:Workload / Q000706:statistics & numerical data