APA

Sierra A., Lopez P., Zapata M. A., Vanegas B., Castrejon M. M., Deantonio R., Hausdorff W. P. & Colindres R. E. (20110503). Non-typeable Haemophilus influenzae and Streptococcus pneumoniae as primary causes of acute otitis media in colombian children: a prospective study. : BMC infectious diseases.

Chicago

Sierra Alexandra, Lopez Pio, Zapata Mercedes A, Vanegas Beatriz, Castrejon Maria M, Deantonio Rodrigo, Hausdorff William P and Colindres Romulo E. 20110503. Non-typeable Haemophilus influenzae and Streptococcus pneumoniae as primary causes of acute otitis media in colombian children: a prospective study. : BMC infectious diseases.

Harvard

Sierra A., Lopez P., Zapata M. A., Vanegas B., Castrejon M. M., Deantonio R., Hausdorff W. P. and Colindres R. E. (20110503). Non-typeable Haemophilus influenzae and Streptococcus pneumoniae as primary causes of acute otitis media in colombian children: a prospective study. : BMC infectious diseases.

MLA

Sierra Alexandra, Lopez Pio, Zapata Mercedes A, Vanegas Beatriz, Castrejon Maria M, Deantonio Rodrigo, Hausdorff William P and Colindres Romulo E. Non-typeable Haemophilus influenzae and Streptococcus pneumoniae as primary causes of acute otitis media in colombian children: a prospective study. : BMC infectious diseases. 20110503.