BMJ 2011; 342:d2040. Lewis JR, Calver J, Zhu K, et al. Calcium supplementation and the risks of atherosclerotic vascular disease in older women: results of a 5-year RCT and a 4.5 year follow-up.
Heart 2012; 98:920-5. van der Sijs IH, Ho-Dac-Pannekeet MM. The treatment of hypomagnesemia.