Barbosa, Constança Simões, et al. “Epidemiology of Schistosomiasis in Coastal Areas of Pernambuco State, Brazil”. Revista de Patologia Tropical Journal of Tropical Pathology, vol. 43, no. 4, Jan. 2015, pp. 436-45, https://doi.org/10.5216/rpt.v43i4.33607.