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["Influence of eradication of Helicobacter pylori in patients with non-ulcer dyspepsia in a hospital of Lima"].
Novoa Reyes I, De los Ríos Senmache R, Pinto Valdivia J, Huerta-Mercado Tenorio J, Piscoya Rivera A, Prochazka Zarate R, García Encinas C, Zegarra Chang A, Bussalleu Rivera A, Refulio Zevallos E. Novoa Reyes I, et al. Among authors: zegarra chang a. Rev Gastroenterol Peru. 2010 Jan-Mar;30(1):25-32. Rev Gastroenterol Peru. 2010. PMID: 20445721 Spanish.
[Utility of urease rapid test for detection of Helicobacter pylori in patients with upper gastrointestinal bleeding from peptic ulcer].
Bravo Paredes E, Guzmán Rojas P, Gallegos López R, Corzo Maldonado M, Zegarra Chang A, Surco Ochoa Y, Piscoya Rivera A, Huerta-Mercado Tenorio J, Prochazka Zárate R, De Los Ríos Senmache R, Pinto Valdivia J. Bravo Paredes E, et al. Among authors: zegarra chang a. Rev Gastroenterol Peru. 2011 Jan-Mar;31(1):17-20. Rev Gastroenterol Peru. 2011. PMID: 21544151 Spanish.
[Validation of a modified version of SODA questionnaire (severity of dyspepsia assessment) adapted to Peru for evaluating evolution of symptoms severity in patients with dyspepsia].
Benites Goñi E, Cabrera Cabrejos S, Chungui Bravo J, Prochazka Zarate R, Bernabe Ortiz A, De los Ríos Senmache R, Pinto Valdivia J, Huerta Mercado J, Piscoya Rivera A, Bussalleu Rivera A, Bravo Paredes E, Zegarra Chang A. Benites Goñi E, et al. Among authors: zegarra chang a. Rev Gastroenterol Peru. 2013 Jan-Mar;33(1):9-27. Rev Gastroenterol Peru. 2013. PMID: 23539052 Spanish.
[The usefulness of the Baylor score in patients with upper gastrointestinal bleeding in a hospital in Lima, Peru].
Bravo Paredes EA, Guzmán Rojas P, Gallegos López RC, Ciliotta Chehade A, Corzo Maldonado MA, Huerta Mercado-Tenorio J, Surco Ochoa Y, Zegarra Chang A, Prochazka Zárate R, Piscoya Rivera A, Pinto Valdivia J, De los Ríos Senmache R. Bravo Paredes EA, et al. Among authors: zegarra chang a. Rev Gastroenterol Peru. 2013 Oct-Dec;33(4):307-13. Rev Gastroenterol Peru. 2013. PMID: 24419027 Spanish.