Surgery, in brief.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003631:Day Care, Medical; D005260:Female; D005102:Health Expenditures; D006760:Hospitalization; D006801:Humans; D007223:Infant; D007348:Insurance, Health; D008297:Male; D008404:Massachusetts; D008875:Middle Aged; D009873:Operating Rooms / Q000706:statistics & numerical data; D012737:Sex Factors; D012959:Socioeconomic Factors; D013514:Surgical Procedures, Operative; D014478:Unemployment