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;

Evaluation of lactate dehydrogenase (LDH) in predicting the severity of lung involvement and pneumomediastinum in hospitalized COVID-19 Hind Eid; Antoine El Kik; Omar Mahmoud; Albert Riachy; Elio Mekhael; Georges Khayat; Bassem Habr; Ghassan Sleilaty; Moussa Riachy;

Solid pseudopapillary tumor of the pancreas in a young pregnant woman Carlos Eduardo Salazar-Mejía; Blanca Otilia Wimer-Castillo; Adriana González-Gutiérrez;