@inbook{1210296759,
author={Matthew L. Maciejewski and Bryan E. Dowd and Edward C. Norton},
editor={Livingston, Edward H. and Lewis, Roger J.},
title={Instrumental Variables and Heterogeneous Treatment Effects},
booktitle={JAMA Guide to Statistics and Methods},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2019},
url={jamaevidence.mhmedical.com/content.aspx?aid=1210296759}
}