[1] Johns Hopkins Univ, Sch Med, Baltimore, MD USA
[2] Johns Hopkins All Childrens Hosp, Johns Hopkins All Childrens Heart Inst, St Petersburg, FL USA
[3] Florida Hosp Children, Orlando, FL USA
[4] Duke Univ, Durham, NC USA
[5] Duke Univ, Duke Clin Res Inst, Durham, NC USA
[6] Univ Michigan, CS Mott Childrens Hosp, Ann Arbor, MI 48109 USA
[7] Texas Childrens Hosp, Baylor Coll Med, Houston, TX 77030 USA
[8] Keck Univ Southern Calif, Childrens Hosp Los Angeles, Sch Med, Los Angeles, CA USA
[9] Soc Thorac Surg Res Ctr, Chicago, IL USA
[10] Harvard Med Sch, Massachusetts Gen Hosp, Boston, MA USA
[11] Emory Univ, Sch Med, Atlanta, GA USA