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González González, José Alberto y Martínez Vázquez, Manuel Alejandro y Maldonado Garza, Héctor Jesús y Garza Galindo, Aldo Azael (2011) Radiation doses to ERCP patients are significantly lower with experienced endoscopists. Gastrointestinal Endoscopy, 73 (2). p. 415. ISSN 00165107