@inbook{57415527,
author={Stanton A. Glantz},
title={Chapter 8. How to Test for Trends},
booktitle={Primer of Biostatistics, 7e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2012},
url={accessbiomedicalscience.mhmedical.com/content.aspx?aid=57415527}
}