Ethnic aspects of boxing and the ringside physician.
D001741:Black or African American; D001914:Boxing; D006554:Hernia, Umbilical / Q000175:diagnosis; D006801:Humans; D006973:Hypertension / Q000175:diagnosis; D007627:Keloid / Q000517:prevention & control; D012805:Sickle Cell Trait / Q000175:diagnosis; D013178:Sports Medicine; D014481:United States