Hernández F, Rivera P, Sigarán M, Miranda J. Diagnosis of Helicobacter pylori: comparison of an urease test, histological visualization of curved bacteria and culture . Rev. Inst. Med. Trop. São Paulo. 1991;33(1):80-82. Accessed July 5, 2024. https://revistas.usp.br/rimtsp/article/view/28797