Bezoar as a cause of intestinal obstruction as the first manifestation of duodenal adenocarcinoma Alan Ledif Reyes-Mondragón; Alejandra Canel-Paredes; Rolando Jacob Martìnez-Granados; Carlos Eduardo Salazar-Mejía; David Hernández-Barajas; Oscar Vidal-Gutiérrez;

Bleomycin-induced pneumomediastinum in a young man with testicular cancer Rolando Jacob Martínez-Granados; Alan Ledif Reyes-Mondragón; Omar Alejandro Zayas-Villanueva; Oscar Vidal-Gutiérrez; Carlos Eduardo Salazar-Mejía;