Sahm, D. F., Karlowsky, J. A., Kelly, L. J., Critchley, I. A., Jones, M. E., Thornsberry, C., . . . Kahn, J. (2001). Need for Annual Surveillance of Antimicrobial Resistance in Streptococcus pneumoniae in the United States: 2-Year Longitudinal Analysis. American Society for Microbiology.

Sahm, Daniel F., James A. Karlowsky, Laurie J. Kelly, Ian A. Critchley, Mark E. Jones, Clyde Thornsberry, Yolanda Mauriz, e James Kahn. Need for Annual Surveillance of Antimicrobial Resistance in Streptococcus Pneumoniae in the United States: 2-Year Longitudinal Analysis. American Society for Microbiology, 2001.

Sahm, Daniel F., et al. Need for Annual Surveillance of Antimicrobial Resistance in Streptococcus Pneumoniae in the United States: 2-Year Longitudinal Analysis. American Society for Microbiology, 2001.