Mejía Mesa GI, Luján Piedrahita M, Robledo Restrepo J, Trujillo Soto H. In-Vitro Sensitivity of Isolates of Streptococcus pneumoniae and Haemophilus influenzae to antibiotics in Medellin, Colombia. Med UPB. 2000;19(2):129-141. Accessed May 30, 2026. https://revistas.upb.edu.co/index.php/medicina/article/view/3500