J Cardiovasc Ultrasound 2012;20(4):165-171
In the 2012 edition of Journal of Cardiovascular Ultrasound, we published an article entitled "Surgical Timing of Degenerative Mitral Regurgitation: What to Consider" 2012;20(4):165-71, http://dx.doi.org/10.4250/jcu.2012.20.4.165
There was an error in the citation of reference.
The correct reference should be 55 instead of 22 at page 167, line 18.