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Acta Gastroenterologica Latinoamericana|January 1, 1979
[Rectal tonometry in the differential diagnosis of constipation in pediatrics]R Licastro, M Ciocca, E Guastavino
Acta Gastroenterologica Latinoamericana|January 1, 1981
[Juvenile polyps in childhood]E Guastavino, J Ortíz, A Varela, et al.
Acta Gastroenterologica Latinoamericana|January 1, 1987
[Fecal alpha 1-antitrypsin clearance in protein-losing enteropathies in pediatrics]L A Heffes Nahmod, N Litwin, E Guastavino
Acta Gastroenterologica Latinoamericana|September 1, 1978
[Gastric polypoid heterotopy in the small intestine]J L Cervetto, E Carpaneto, S Singer, et al.
Acta Gastroenterologica Latinoamericana|January 1, 1988
[Ulcerative colitis in children. Levels of salicylazosulfapyridine and sulfapyridine during treatment]E Guastavino, N H Litwin, L Heffes Nahmod, et al.
Acta Gastroenterologica Latinoamericana|January 1, 1986
[Determination of amylase creatinine clearance in children and adolescents]L A Heffes Nahmod, N Litwin, E Guastavino, et al.
Acta Gastroenterologica Latinoamericana|January 1, 1978
[Radiologic diagnosis of Meckel's diverticulum]J L Cervetto, J P Ortiz, R Licastro, et al.
Arquivos De Gastroenterologia|January 1, 1984
[Fibrocystic disease of the pancreas: a presentation feature. Anatomopathological report]L A Heffes Nahmod, J Ortiz, J L Cervetto, et al.
Acta Gastroenterologica Latinoamericana|October 26, 1999
[Barrett's esophagus: diagnosis and coexistent diseases in childhood]J A Ruiz, A Rocca, M T García de Dávila, et al.
Acta Gastroenterologica Latinoamericana|January 1, 1993
[Correlation of IgA class antigliadin and antiendomysial antibodies (IgA-AGA-IgA-EMA) with intestinal histology in celiac disease]S De Rosa, N Litwin, M T Dávila, et al.
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