@inbook{1131940088,
author={Harriët Wittink and Leonidas C. Goudas and Scott Strassels and Daniel B. Carr},
editor={Bajwa, Zahid H. and Wootton, R. Joshua and Warfield, Carol A.},
title={Outcome Measurements in Pain Medicine},
booktitle={Principles and Practice of Pain Medicine, 3e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2016},
url={neurology.mhmedical.com/content.aspx?aid=1131940088}
}