The quantity and quality of hospital labor.
D000293:Adolescent; D000328:Adult; D000368:Aged; D004522:Educational Status; D004526:Efficiency; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D010564:Personnel, Hospital / Q000191:economics / Q000600:supply & distribution*; D012456:Salaries and Fringe Benefits; D012959:Socioeconomic Factors; D014481:United States