05.12.2002
Meta-analysis of calcium supplementation for the prevention of postmenopausal osteoporosis
B. Shea, G. Wells, A. Cranney, N. Zytaruk, V. Robinson, L. Griffith, Z. Ortiz, J. Peterson, J. Adachi, P. Tugwell, G. Guyatt, The Osteoporosis Methodology Group, and The Osteoporosis Research Advisory Group
Endocrine Reviews, 2002; 23: 552-559