Laparoscopic sleeve gastrectomy: Surgical technique, indications and clinical results 

Gastroesophageal sphincter pressure and histological changes in distal esophagus in patients with achalasia of the esophagus 

Classification and treatment of anastomotic leakage after extended total gastrectomy in gastric carcinoma 

Clinical and laboratory characteristics and surgical alternatives in patients with postoperative recurrent reflux esophagitis 

A cooperative study on early and intermediate gastric cancer: clinical, diagnostic and therapeutic aspects Estudio cooperativo en cancer gastrico incipiente e intermedio: aspectos clinicos, diagnosticos y terapeuticos. 

Clinical and laboratory correlation of severe esophagitis compared to mild or moderate esophagitis Correlación clínica y de laboratorio de la esofagitis severa comparado con esofagitis leve o moderada. 

A Symposium on Management of Barrett’s in Patients Having Bariatric Surgery 

Dieulafoy's vascular malformation as a cause of massive and recurrent gastric hemorrhage Malformación vascular de Dieulafoy como causa de hemorragia gástrica masiva y recurrente. 

Gallstone ileus 

Surgical management of esophageal strictures