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Cigarette smoking, alcohol consumption, and screening mammography among women ages 50 and older.

L. Fredman, N. Kanarek, Y. Cui, 1999, Preventive medicine.

The prevalence of vitamin D inadequacy amongst women with osteoporosis: an international epidemiological investigation

J. Chandler, P. Lips, D. Hosking, 2006, Journal of internal medicine.

Physician and patient perceptions on the use of vitamin D and calcium in osteoporosis treatment: a European and Latin American perspective*

S. Sen, L. Wehren, H. Resch, 2007, Current medical research and opinion.