Marçal Júnior, Oswaldo, Luiz Koodi Hotta, Rosa Maria de Jesus Patucci, Carmen Moreno Glasser, and Luiz Candido de Souza Dias. 1993. “ Schistosomiasis Mansoni in an Area of Low Transmission: II. Risk Factors for Infection ”. Revista Do Instituto De Medicina Tropical De São Paulo 35 (4): 331-35. https://revistas.usp.br/rimtsp/article/view/29054.