@inbook{1101199236,
author={Kenneth J. Ryan and C. George Ray},
title={Streptococci and Enterococci},
booktitle={Sherris Medical Microbiology, 6e},
publisher={},
address={New York, NY},
year={2014},
url={accessbiomedicalscience.mhmedical.com/content.aspx?aid=1101199236}
}