@inbook{1175892479,
author={David B. Allen and Kristen Nadeau and Michael S. Kappy and Mitchell E. Geffner},
title={Preface},
booktitle={Pediatric Endocrinology: Principles and Practice, 3e},
publisher={McGraw Hill},
address={New York, NY},
year={2020},
url={accesspediatrics.mhmedical.com/content.aspx?aid=1175892479}
}