From the Centers for Disease Control and Prevention. Fatalities associated with large round hay bales--Minnesota, 1994-1996.
D000062:Accidents, Occupational / Q000401:mortality* / Q000706:statistics & numerical data; D000328:Adult; D000383:Agriculture; D006801:Humans; D008297:Male; D008875:Middle Aged; D008910:Minnesota / Q000453:epidemiology