Onicescu D
Morphol Embryol (Bucur). 1985 Oct-Dec;31(4):245-7.
Folic acid investigated in motor end plate by histochemical method appeared in the long nerve terminals of the motor axon, in the cytoplasm of Schwann cell. In muscle fibre opposite to the nerve arborizations, spaced granular lines perpendicular to the sarcolemma were observed.