@inbook{1106399503, author={Diana W. Bianchi and Timothy M. Crombleholme and Mary E. D'Alton and Fergal D. Malone}, title={Hydronephrosis: Ureteropelvic Junction Obstruction}, booktitle={Fetology: Diagnosis and Management of the Fetal Patient, 2e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={obgyn.mhmedical.com/content.aspx?aid=1106399503} }