@inbook{57836337, author={Ying Xian}, editor={Lopes, Renato D. and Harrington, Robert A.}, title={Chapter 11. Data Resources}, booktitle={Understanding Clinical Research}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2013}, url={accessbiomedicalscience.mhmedical.com/content.aspx?aid=57836337} }