Accessory Nerve PalsyJNNP 40:1113, Olarte,M.,et al, 1977
Brachial Plexus InjuriesNEJM 291:1059, 1974 & 292, 4285., Leffert,R., 1975
Peripheral NR. Injuries & their RepairsSurg Clin North Am Oct 1972., , 1972