| Table of contents Cir. gen vol.39 n.2 Ciudad de México Apr./Jun. 2017 Editorial | | | | · And Invitation from confusion Escamilla Ortiz, Abilene C
| | | Original articles | | | | · Proctological laser surgery, initial experience in Mexico Moreno Berber, José Manuel; Montes Osorio, Zaira Eunice; Mendoza Reyes, Arturo; Hernández Castro, María del Rocío
| | | | · Gastric bypass as a metabolic management model in type 2 diabetes mellitus and obesity grade 1, compared to conventional treatment Menchaca Ramos, Luis Guillermo; Larios Forte, María del Carmen; Garza Muñoz, Roberto Alain
| | | | · Management of complicated stomas and/or hostile abdomen with Rivera’s condom technique. Ten years of experience Rivera Pérez, Miguel Ángel; Quezada González, Bertha Karina; Quiñónez Espinoza, Marlon; Almada Valenzuela, Ramón René
| | | | · Management of cholecystcholedocholithiasis: preoperative versus transoperative endoscopic retrograde cholangiography in Hospital Miguel Hidalgo in Aguascalientes Barba Valadez, Claudia Teresa; Barba Valadez, Leonardo Alberto; Gaitán Mercado, Carlos Martín; López Rodríguez, Jorge Luis
| | | Clinical cases | | | | · Massive lower gastrointestinal bleeding secondary to a Meckel’s diverticulum: a case report Castillo Barragán, Carlos; Joo Márquez, Paul; Choel Molina, Diego Alberto; Valdez Grajales, Héctor; Lara Aguilera, Selene
| | | | · Left common carotid artery injury due to firearm projectile. Case report and review of literature Soto Granados, Mauro
| | | | · Recto-illiac arterio-venous fistula as the cause of recurrent rectal bleeding. Case report and brief anatomical review Sánchez-Betancourt, Alfredo Alonso; Sibaja-Álvarez, Pablo
| | | | · Case report: colo-umbilical fistula secondary to uncomplicated diverticular disease Rosado Martínez, Miguel Ángel; Sánchez Valle, José Antonio; De La Rosa Jiménez, José Antonio
| | | History, ethics and philosophy | | | | · Malpractice, ethical-legal distinction Zendejas Vázquez, Jorge Alfredo
| | | | · Coexistence rules Choy Gómez, Jacobo
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