Xu, Q., Pichichero, M. E., Casey, J. R., & Zeng, M. (2009). Novel Type of Streptococcus pneumoniae Causing Multidrug-Resistant Acute Otitis Media in Children. Centers for Disease Control and Prevention.
Chicago-tyylinen lähdeviittausXu, Qingfu, Michael E. Pichichero, Janet R. Casey, ja Mingtao Zeng. Novel Type of Streptococcus Pneumoniae Causing Multidrug-Resistant Acute Otitis Media in Children. Centers for Disease Control and Prevention, 2009.
MLA-viiteXu, Qingfu, Michael E. Pichichero, Janet R. Casey, ja Mingtao Zeng. Novel Type of Streptococcus Pneumoniae Causing Multidrug-Resistant Acute Otitis Media in Children. Centers for Disease Control and Prevention, 2009.
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