@inbook{1107196755,
author={Samer Narouze},
editor={Diwan, Sudhir and Staats, Peter S.},
title={Sphenopalatine Ganglion Block},
booktitle={Atlas of Pain Medicine Procedures},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2015},
url={accessanesthesiology.mhmedical.com/content.aspx?aid=1107196755}
}