Contreras Camarena, C. W., and C. A. Galarza Manyari. “A Profile of Patients Attending the Medicine Service in a Public Hospital”. ACTA MEDICA PERUANA, Vol. 26, no. 4, Dec. 2009, pp. 212 -16, http://54.39.98.165/index.php/AMP/article/view/1529.