@inbook{56215053,
author={Allan J. Walkey, MD, MSc and Harrison W. Farber, MD},
editor={McKean, Sylvia C. and Ross, John J. and Dressler, Daniel D. and Brotman, Daniel J. and Ginsberg, Jeffrey S.},
title={Chapter 244. Pulmonary Hypertension},
booktitle={Principles and Practice of Hospital Medicine},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2012},
url={accessmedicine.mhmedical.com/content.aspx?aid=56215053}
}