@inbook{57417370,
author={Stanton A. Glantz},
title={Chapter 9. Experiments When Each Subject Receives More Than One Treatment},
booktitle={Primer of Biostatistics, 7e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2012},
url={accessanesthesiology.mhmedical.com/content.aspx?aid=57417370}
}