@inbook{1182907409,
author={Ahmed I. Marwan and Mike K. Chen},
editor={Kline, Mark W.},
title={Gastrointestinal Obstruction},
booktitle={Rudolph's Pediatrics, 23e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2018},
url={accesspediatrics.mhmedical.com/content.aspx?aid=1182907409}
}