[1] Southern Illinois Univ, Sch Med, Div Cardiothorac Surg, Springfield, IL 62794 USA
[2] Harvard Med Sch, Massachusetts Gen Hosp, Div Thorac Surg, Boston, MA USA
[3] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[4] Johns Hopkins All Childrens Hosp, Johns Hopkins All Childrens Heart Inst, St Petersburg, FL USA
[5] Florida Hosp Children, St Petersburg, FL USA
[6] Johns Hopkins All Childrens Hosp, Johns Hopkins All Childrens Heart Inst, Tampa, FL USA
[7] Florida Hosp Children, Tampa, FL USA
[8] Johns Hopkins All Childrens Hosp, Johns Hopkins All Childrens Heart Inst, Orlando, FL USA
[9] Florida Hosp Children, Orlando, FL USA
[10] Soc Thorac Surg Res Ctr, Chicago, IL USA
[11] Emory Univ, Dept Surg, Atlanta, GA 30322 USA