Trabulsi, L. R., A. Manissadjan, H. A. de Oliveira Penna, R. Liberatore, L. Duailibe, B. de Camargo, and E. S. Peixoto. 1961. “Infantile Diarrheae by Enteropathogenic Bacilli: Preliminary Studies on the Occurrence of Certain Groups and Serologic Types in São Paulo”. Revista Do Instituto De Medicina Tropical De São Paulo 3 (6): 267-70. https://revistas.usp.br/rimtsp/article/view/202837.