Kaldmäe , M., M. Zilmer, M. Viigimaa, G. Zemtsovskaja, K. Tomberg, T. Kaart, and M. Annuk. “Cardiovascular Disease Risk Factors in Homeless People”. Upsala Journal of Medical Sciences, vol. 116, no. 3, June 2011, pp. 200–207, doi:10.3109/03009734.2011.586737.