Colichón A., Héctor, et al. “Studies of Intestinal Streptococcal Urinary Infections. First Report of a Work in Progress”. Anales De La Facultad De Medicina, vol. 47, no. 3-4, Dec. 1964, pp. 237-56, https://doi.org/10.15381/anales.v47i3-4.5962.