P. E. Belchetz, Margaret H. Lloyd, R. G. S. Johns, R. D. Cohen
Belchetz P E, Lloyd M H, Johns R G S, Cohen R D.
Effect of Late Night Calcium Supplements on Overnight Urinary Calcium Excretion in Premenopausal and Postmenopausal Women
Br Med J 1973; 2 :510
doi:10.1136/bmj.2.5865.510