The relative influence of polyparasitism, environment, and host factors on schistosome infection

de Cássia Ribeiro Silva R, Barreto ML, Assis AMO, de Santana MLP, Parraga IM, Reis MG, Blanton RE. The relative influence of polyparasitism, environment, and host factors on schistosome infection. Am J Trop Med Hyg. 2007; 77(4): 672–5.