Accidents do not happen--they are caused.
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Sykes
D000766:Anesthesia, Dental / Q000009:adverse effects / Q000266:history; D000768:Anesthesia, General / Q000009:adverse effects / Q000266:history*; D001315:Australia; D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007049:Iatrogenic Disease; D011361:Professional Competence; D006113:United Kingdom; D014481:United States