1.
Pérez de G. MA, Mejía de R. GI, Mejía J, Trujillo H. Role of group A beta-hemolytic streptococcus in children with chronic recurrent tonsillopharyngitis. Med UPB [Internet]. 1989 Dec. 15 [cited 2026 Jun. 4];8(2):141-9. Available from: https://revistas.upb.edu.co/index.php/medicina/article/view/5654