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by American Academy of Orthopaedic Surgeons; American College of Emergency Physicians; Thygerson, Alton L.
by Unknown
by AAOS
by American Academy of Orthopaedic Surgeons (AAOS),; American College of Emergency Physicians (ACEP),; Thygerson, Alton L.; et al.
by American Red Cross
by American Academy of Orthopaedic Surgeons (AAOS); American College of Emergency Physicians (ACEP); Thygerson, Alton L.; et al.
by American Heart Association
by National Safety Council (NSC)