Ureta Núñez, Yonny Manuel, Reynaldo Garrido Gonzales, and Mariela Bustamante Díaz. 2011. “Detection of Nodules of the Thyroid Gland, by Ultrasonographic Study, in Patient Volunteers”. ACTA MEDICA PERUANA 28 (3), 150-54. http://54.39.98.165/index.php/AMP/article/view/1104.