@inbook{1154311512, author={Michael H. Crawford, MD}, editor={Crawford, Michael H.}, title={Regurgitación aórtica}, booktitle={Diagnóstico y tratamiento en cardiología, 5e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accessmedicina.mhmedical.com/content.aspx?aid=1154311512} }