Closed anal sphincter manipulation technique for chronic anal fissure Gupta

Endoscopic biliary large-balloon dilation after endoscopic sphincterotomy for the treatment of large common bile duct stones. Case Report Salceda-Otero, Vázquez-Ballesteros, Peláez-Luna, Lozoya-González, González-Galeote, Farca-Belsaguy

Características clínicas y manométricas en pacientes ancianos con acalasia Ortiz-Olvera, González-Martínez, Dehesa-Violante, Morán-Villota