Hypocalcemia
In Harrison's Principles of Internal Medicine, McGraw-Hill Book Co, NY, p. 18837., Potts,J.T., 1987
Normocalcemic Tetany
Neurol 26:825, Isgreen,W.P., 1976
Neurological Problems in Endocrine Diseases
Med Clin North Am 56:1029, Dale,A., 1972