1.Single-incision laparoscopic sleeve gastrectomy: initial experience in 20 patients and 2-year follow-up. 1.- Gastric leak after sleeve gastrectomy: analysis of its management. 1.- Gastric leak after sleeve gastrectomy: analysis of its management. 2.- Gallbladder cáncer: role of laparoscopy in the managment of potentially resectable tumors. 3.- Alcohol absorption modification after a laparoscopic sleeve gastrectomy due to obesity. 4.- Enhancement in liver SREBP-1c/PPAR-alpha ratio and steatosis in obese patients: correlations with insulina resistance and n-3 long-chain polyunsaturated fatty acid depletion. 5.- Early gallbladder cancer: is further treatment necessary? 6.- Gastric Leak After Laparoscopic Sleeve Gastrectomy for Obesity 7.- Liver NF – Kappab and AP – 1 Binding in Obeses Patients. 8.- A prospective randomized study comparing patients with morbid obesity submitted to laparotomic gastric bypass with or without omentectomy. 9.- Behavior of the common bile Duch diameter before and 12 years alter choledochostomy for cholecystolithiasis and choledocholithiasis. A prospective study. 10.- Polyunsaturated fatty acid pattern in liver and erythrocyte phospholipids from obese patients. 11.- Chemoradiotherapy in gallbladder cancer. 12.- Increased production of IL-1alpha and TNF-alpha in lipopolysaccharide-stimulated blood from obese patients with non_alcoholic fatty liver disease. 13.- Gallbladder Cancer: An Analisis of a Series of 139 Patients With Invasion Restricted to the Subserosal Layer. 14.- Conservative management of anastomotic leaks alter 557 open gastric bypasses 15.- Results of Gastric Bypass Plus Resection of the Distal Excluded Gastric Segment in patients with Morbid Obesity

16.- Oxidative stress-related parameters in the liver of non-alcoholic fatty liver disease patients. 17.- A prospective randomized study comparing D2 total gastrectomy versus D2 total gastrectomy plus splenectomy in 187 patients with gastric carcinoma. 18.- Prevalence of common bile Duch stones according to the increasing number of risk factors present. A prospective study employing routinely intraoperative cholangiography in 477 cases. 19.- Long term results of classic antireflux Surgery in 152 patients with Barrett’s esophagus: clinical, radiologic, endoscopic, manometric, and acid reflux test analysis before and late after operative. 20.- Histological findings of gallbladder mucosa in 95 control subjects and 80 patientes with asymptomatic gallstones. 21.-A new Physiologic approach for the surgical treatment of patients with Barrett’s esophagus: technical considerations and results in 65 patients. 22.- Laparoscopic highly selective vagotomy technical considerations and preliminary results in 119 patients with duodenal ulcer or gastroesophageal reflux disease. 23.- Simultaneous bacteriologic assesment of bile grom Gallbladder and common bile duct in control subjects and patients with gallstones and common duct stones 24.- Counts of bacteric and pyocites of choledochal bile in controls and patients with gallstones or common bile duct stones with or without Acute Cholangitis. 25.- Prospective Study of Esophageal Motor abnormalities in patients with Gastroesophageal Reflux Disease according to the severity of endoscopic Esophagitis. 26.- Bacteriological studies of liver parenchyma in controls and in patients with gallstones or common bile duct stones with or without acute cholangitis. 27.- Late results of primary repair and follow-up in 53 patients with injuries to the common bile duct occurring during cholecystectomy (distal perforation, tears, ligation or suture) 28.- Results of Heinecke-Mikulicz Type Choledocoplasty in Benign Biliary Strictures. 29.- rospective randomized study comparing three surgical techniques for the treatment of Gastric Outlet Obstruction secondary to Duodenal Ulcer. 30.- Location of the lower oesophageal sphincter and the squamous columnar mucosal junction in 109 healthy controls and 778 patients with different degrees of endoscopic oesophagitis.

31.- Indications and Results of Hepaticojejunostomy in Benig Strictures of the Biliary Tract. 32.- Risk factors and classification of acute suppurative cholangitis. 33.- Peptic Ulcer of the esophagus secondary to relux esophagitis: clinical, radiological, endoscopic, histological, manometric and isotopic studies in 127 patients. 34.- Resultados inmediatos de la Cirugía de la ulcera Gástrica en 544 pacientes operados en un período de 10 años. 35.- Resultados inmediatos de la Cirugía de la ulcera Gástrica en 544 pacientes operados en un período de 10 años. 36.- Correlación Clínica y de Laboratorio de la Esofagitis Severa comparado con Esofagitis Leve o Moderada. 37.- Mirizzi Syndrome and Cholecystobiliary Fistula: a Unifyng Classification. 38.- Indications and Results of Choledochoduodenostomy in Benign Biliary Tract Diseases. 39.- Histological Analysis of Liver Parenchyma and Choledochal wall, and External Diameter and Intraluminal Pressure of the Common Bile Duct in Controls and Patients with Common Bile Duct Stones with and without Acute Suppurative Cholangitis. 40.- Factors Affecting Mortality in Patients over 70 Years of Age Submitted to Surgery for Gallbladder or Common Bile Duct Stones. 41.- Bacteriological Study of Choledochal Bile in Patients with Common Bile DuctStones,with or without Acute Suppurative Cholangitis. 42.- Results of Surgical Treatment in Patients with “Western” Intrahepatic Lithiasis. 43.- Late Results of Inmediate Primary End to End Repair in Accidental Section of Common Bile Duct. 44.- Clinical and laboratory correlation of severe esophagitis compared to mild o moderate esophagitis. 45.- Common Bile Duct Pressure in Patients with Common Bile Duct Stones with or without Acute Suppurative Cholangitis.