@inbook{1154111463,
author={Mark W. Kline},
title={Developmental Delay and Regression},
booktitle={Rudolph's Pediatrics, 23e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2018},
url={accesspediatrics.mhmedical.com/content.aspx?aid=1154111463}
}