title: Costs of an appendectomy: regional variations.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001062:Appendectomy / Q000191:economics*; D001064:Appendicitis / Q000453:epidemiology; D003365:Costs and Cost Analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014481:United States