Two novel missense mutations in calcium-sensing receptor gene associated with neonatal severe hyperparathyroidism. - Kobayashi,M.; Tanaka,H.; Tsuzuki,K.; Tsuyuki,M.; Igaki,H.; Ichinose,Y.; Aya,K.; Nishioka,N.; Seino,Y. (J Clin Endocrinol Metab, 1997)