Avulsion of the profundus tendon insertion in athletes. Vascular anatomy of flexor tendons. N Ochiai, T Matsui, N Miyaji et al. J. Hand Surg. Vol 4. 1979.
Anomalous tendon slips from the flexor pollicis longus to the flexor digitorum profundus.
RM Linburg and BE Comstock. J. Hand Surg. Vol 4. 1979. Variations in innervationn of the FDP muslce. N Bhadra MD et al.