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G.E.N|January 1, 1981
[Value of ultrasound and retrograde pancreatocholangiography in the diagnosis of pancreatic diseases]J R PoleoG.E.N|July 1, 1975
[Use of esophageal cytology. Comparative study on the value of various methods (III)]J R Poleo, H J Vegas, F AcevedoG.E.N|April 1, 1992
[Nonulcerative dyspepsia associated with Helicobacter pylori]J Moncada, R Piñero, J R Poleo, et al.G.E.N|January 1, 1990
[Barrett esophagus. Frequency, endoscopic, histologic, and clinical characteristics]R Piñero, A Salomón, R González, et al.G.E.N|January 1, 1990
[Retrograde endoscopic cholangiopancreatography. Incidence of bacteremia]L J Marsicano, N Serrano, M I Urrestarazu, et al.G.E.N|October 1, 1993
[Gastric mucosa injuries in portal hypertension]R Piñero, G Urquiola, M Yaraure, et al.G.E.N|January 1, 1992
[Non ulcer dyspepsia, endoscopic gastritis and Helicobacter pylori]M Rodríguez, R Piñero, M I Urrestarazu, et al.G.E.N|April 1, 1995
[Helicobacter pylori eradication heals the duodenal ulcer. Randomized, simple, and controlled study with omeprazole]R Piñero, M Pacheco, M Urrestarazu, et al.G.E.N|January 1, 1990
[Percutaneous liver biopsy in outpatients]M E Ocampo, R Piñero, G Urquiola, et al.Pageof 2