Araújo, Jackson Victor de, et al. “Immunization of Rats With Infective Larvae of 60 Co Irradiated Strongyloides Ratti”. Pesquisa Agropecuaria Brasileira, vol. 26, no. 4, Apr. 1991, pp. 515-20, https://doi.org/10.1590/S1678-3921.pab1991.v26.3372.