Frequency of bleeding in football.
Seward
H G
HG
Orchard
J W
JW
Hazard
H
H
Collinson
D C
DC
D001265:Athletic Injuries / Q000453:epidemiology; D001315:Australia / Q000453:epidemiology; D005538:Football / Q000293:injuries*; D015658:HIV Infections / Q000635:transmission; D006470:Hemorrhage / Q000453:epidemiology*; D006509:Hepatitis B / Q000635:transmission; D006801:Humans; D009517:New South Wales / Q000453:epidemiology; D012307:Risk Factors