Parasitic infections among patients hospitalized in the Tropical and Parasitic Clinic of Poznan University of Medical Sciences, Poland between 2015 and 2018. Is there a relationship between protozoa infection and gastrointestinal symptoms? - Pielok, Łukasz; Kłudkowska, Matylda; Frąckowiak, Krystyna; Stefaniak, Jerzy (Gastroenterology Review/Przegląd Gastroenterologiczny, 2022)