Foster J B, Leiguarda R, Tilley P J
Lancet. 1976 May 8;1(7967):981-3. doi: 10.1016/s0140-6736(76)91858-4.
Five National Hunt jockeys have been found to have post-traumatic encephalopathy- three with epilepsy and two with significant intellectual and psychological deterioration. Closer supervision is needed.