Candida albicans the main opportunistic pathogenic fungus in humans Ignacio Uriel Macias-Paz; Salvador Pérez-Hernández; Alejandra Tavera-Tapia; Juan Pedro Luna-Arias; José Eugenio Guerra-Cárdenas; Elizabeth Reyna-Beltrán;

Identification of serologically active Helicobacter pylori antigens related to alterations in serum pepsinogen levels Rodolfo González Segovia; Yolanda Romo Lozano; Martín Gerardo Rodríguez; Angelina Lizbeth Montañez Flores; Juan González Macías;