@inbook{1201941119,
author={John Murtagh and Clare Murtagh},
title={U},
booktitle={John Murtagh’s General Practice Companion Handbook, 8th Edition},
publisher={McGraw-Hill Education (Australia) Pty Ltd},
address={Sydney, Australia},
year={2022},
url={murtagh.mhmedical.com/content.aspx?aid=1201941119}
}