Krzyzanowsky F, Avila-Campos MJ. Detection of non-enterotoxigenic and enterotoxigenic Bacteroides fragilis in stool samples from children in São Paulo, Brazil . Rev. Inst. Med. Trop. São Paulo. 2003;45(4):225-227. Accessed April 12, 2025. https://revistas.usp.br/rimtsp/article/view/30724