Rodrigues, Maria Conceição, et al. “Study on the Neutralizing Antibodies Against Herpes Simplex Virus in Indians of Upper Xingu River, Central Brazil”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 15, no. 1, Feb. 1973, pp. 20-24, https://www.revistas.usp.br/rimtsp/article/view/200752.