Surgical errors are the most frequent, most costly.
D000058:Accidental Falls / Q000191:economics / Q000706:statistics & numerical data; D003365:Costs and Cost Analysis; D003428:Cross Infection / Q000191:economics / Q000453:epidemiology; D006801:Humans; D019300:Medical Errors / Q000191:economics / Q000706:statistics & numerical data; D008508:Medication Errors / Q000191:economics / Q000706:statistics & numerical data; D013514:Surgical Procedures, Operative / Q000009:adverse effects* / Q000191:economics / Q000706:statistics & numerical data; D014481:United States / Q000453:epidemiology