Kulak C A, Bandeira C, Voss D, Sobieszczyk S M, Silverberg S J, Bandeira F, Bilezikian J P
Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA.
J Clin Endocrinol Metab. 1998 Mar;83(3):732-5. doi: 10.1210/jcem.83.3.4655.