TY - BOOK T1 - An introduction to gastro-enterology A1 - Alvarez, Walter C. PP - New York PB - Paul B.Hoeber Inc. YR - 1941 ED - 3 ed. UL - http://vufind10-pruebas.sigbunlp.bibliotecas.unlp.edu.ar/Record/dun.44085 ER -