Sierra, A., Lopez, P., Zapata, M. A., Vanegas, B., Castrejon, M. M., DeAntonio, R., . . . Colindres, R. E. (2011). Non-typeable Haemophilus influenzae and Streptococcus pneumoniae as primary causes of acute otitis media in colombian children: A prospective study. BioMed Central.

Sierra, Alexandra, Pio Lopez, Mercedes A. Zapata, Beatriz Vanegas, Maria M. Castrejon, Rodrigo DeAntonio, William P. Hausdorff, και Romulo E. Colindres. Non-typeable Haemophilus Influenzae and Streptococcus Pneumoniae As Primary Causes of Acute Otitis Media in Colombian Children: A Prospective Study. BioMed Central, 2011.

Sierra, Alexandra, et al. Non-typeable Haemophilus Influenzae and Streptococcus Pneumoniae As Primary Causes of Acute Otitis Media in Colombian Children: A Prospective Study. BioMed Central, 2011.