Nakajima K, Yamazaki K, Kimura H, Takano K, Miyoshi H, Sato K. Novel gain of function mutations of the calcium-sensing receptor in two patients with PTH-deficient hypocalcemia. Intern Med. 2009;48(22):1951–6. doi: 10.2169/internalmedicine.48.2459. PMID: 19915295.