@inbook{1201939448, author={John Murtagh and Clare Murtagh}, title={L}, 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=1201939448} }