@inbook{1182930379, author={Ayman W. El-Hattab and Fernando Scaglia}, editor={Kline, Mark W.}, title={Disorders of Purine and Pyrimidine Metabolism}, booktitle={Rudolph's Pediatrics, 23e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1182930379} }