@inbook{1183876898, author={Shanil Ebrahim and Stephen D. Walter and Deborah J. Cook and Roman Jaeschke and Gordon Guyatt}, editor={Guyatt, Gordon and Rennie, Drummond and Meade, Maureen O. and Cook, Deborah J.}, title={Correlation and Regression}, booktitle={Users' Guides to the Medical Literature: A Manual for Evidence-Based Clinical Practice, 3rd ed}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={jamaevidence.mhmedical.com/content.aspx?aid=1183876898} }