div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: semfacmedunammx · Ernesto Pineda Gómez Héctor Manuel Prado Calleros David Ramirez Tapia Maria Guadalupe Trinidad Rico Rosillo Mariana Edith Rodriguez Lugo Victor Manuel Rodriguez src=https:reader033fdocumentsecreader033viewer20220421025e7e70ea38dc60170c180afahtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv