Perioperative cardiovascular mortality in noncardiac surgery: validation of the Lee cardiac risk index.
Boersma E, Kertai MD, Schouten O, Bax JJ, Noordzij P, Steyerberg EW, Schinkel AF, van Santen M, Simoons ML, Thomson IR, Klein J, van Urk H, Poldermans D.
Boersma E, et al. Among authors: steyerberg ew.
Am J Med. 2005 Oct;118(10):1134-41. doi: 10.1016/j.amjmed.2005.01.064.
Am J Med. 2005.
PMID: 16194645