November 2010 references and further reading
Calcium supplements and heart attack
Wang L, Manson JE, Song Y, Sesso HD. Systematic review: Vitamin D and calcium supplementation in prevention of cardiovascular events. Annals of Internal Medicine 2010; 152:315-23.
Bolland MJ, Avenell A, Baron JA, et al. Effect of calcium supplements on risk of myocardial infarction and cardiovascular events: meta-analysis. BMJ 2010; 341:c3691.
Light and social smoking carry cardiovascular risks
Schane RE, Ling PM, Glantz SA. Health effects of light and intermittent smoking: a review. Circulation 2010; 121:1518-22.