Diagnostic Yield of Opportunistic Upper Gastrointestinal Endoscopy During Elective Colonoscopy in Asymptomatic Patients: A Retrospective Cross-Sectional Study.
Assis Aleixo Chaves Freitas C, Rodrigues Chaves S, Pessoa RP, Gallo de Alvarenga Mafra L, Gallo de Alvarenga Mafra J, Seubert Coelho Vieira E, Vieira Brito G, De Giuli G, Roda R
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