Type 4 Waardenburg syndrome (also called Waardenburg-Shah syndrome) is characterized by symptoms of Hirschsprung's disease in addition to the classic features of hearing loss and pigmentation abnormalities.
[Effects of a vitamin B complex on functional recovery after nerve injury (author's transl)]. Hasegawa K, Mikuni N, Sakai Y. Functional recovery after nerve crushing was investigated in the following manner: Under pentobarbital anesthesia the sciatic nerve of the rat was crushed at the level of the hip (proximal crush) or the thigh (distal crush).
B-complex support with extra B6. 1  unlike many B vitamin products, B Complex #6 contains the active forms of B vitamins for optimal absorption*. 2  B-Complex #6 contains an optimal balance of essential B vitamins with extra vitamin B6 as pyridoxine and pyridoxal 5'-phosphate. 3  B-Complex #6 is yeast free.