I. . Ibara Tanaka, A. . Hirochi Iwamoto, and O. C. . Person, “Lethal acute amigdalitis caused by Streptococcus pyogenes: DOI: 10.15343/0104-7809.200933.1.16”, Mundo Saude, vol. 33, no. 1, pp. 114–117, Jan. 2009.