Paredes Ynga, A. A., F. Palomino Paz, E. Florintin, O. A Castillo Sayán, E. C. Mujica Alban, A. Lujan Reyner, and E. Paredes Ynga. “Serum Ferritin in 15- to 30- Year Old Women at Sea Level and at High Altitude”. ACTA MEDICA PERUANA, Vol. 29, no. 4, Dec. 2012, pp. 185-9, http://54.39.98.165/index.php/AMP/article/view/1214.