“Five-Year Prevalence of Gastrointestinal Diseases and Disorders in Akure South, Nigeria: Prevalence of Gastrointestinal Diseases in Akure South ”. African Journal of Biomedical Research, bd. 24, nr. 2, maj 2021, s. 245-9, https://www.ojshostng.com/index.php/ajbr/article/view/1627.