Serafim, M. B. ., Castro, A. F. P. de ., Rangel, H. A. ., & Pustiglione Neto, L. . (1977). Isolation of heat-stable enterotoxin-producing strains of escherichia coli isolated from cases of diarrhea in Campinas, SP, Brazil. Revista Do Instituto De Medicina Tropical De São Paulo, 19(3), 144-147. https://revistas.usp.br/rimtsp/article/view/197856