@article{crawley_barkdull_dent_bishop_davidson_2009, 
  title={Relative Hypotension and Image Guidance}, 
  volume={135}, 
  DOI={10.1001/archoto.2009.139}, 
  number={10}, 
  publisher={American Medical Association (AMA)}, 
  author={Crawley and Barkdull and Dent and Bishop and Davidson}, 
  year={2009}, 
  month={Oct}
  }