The martial arts and the caucasian knee: "a tiger by the tail".
D044466:Asian People; D006801:Humans; D007717:Knee / Q000502:physiology; D007718:Knee Injuries / Q000453:epidemiology*; D007719:Knee Joint / Q000033:anatomy & histology; D013177:Sports; D013178:Sports Medicine; D014481:United States; D044465:White People