Non-typeable Haemophilus influenzae and Streptococcus pneumoniae as primary causes of acute otitis media in colombian children: a prospective study

por Sierra, Alexandra, Lopez, Pio, Zapata, Mercedes A, Vanegas, Beatriz, Castrejon, Maria M, DeAntonio, Rodrigo, Hausdorff, William P, Colindres, Romulo E
Publicado 2011