@inbook{57095174,
author={Douglas F. Paulsen},
title={Chapter 17. Respiratory System},
booktitle={Histology & Cell Biology: Examination & Board Review, 5e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2010},
url={accessmedicine.mhmedical.com/content.aspx?aid=57095174}
}