[1] Spectrum Hlth Helen DeVos Childrens Hosp, Congenital Heart Ctr, 100 Michigan NE MC248, Grand Rapids, MI 49503 USA
[2] Michigan State Univ, Coll Human Med, Pediat & Human Dev, Grand Rapids, MI 49503 USA
[3] Spectrum Hlth Med Grp, Maternal Fetal Med, Grand Rapids, MI 49503 USA
[4] Michigan State Univ, Coll Human Med, Obstet Gynecol & Reprod Biol, Grand Rapids, MI 49503 USA
[5] West Michigan Anesthesia PC, Grand Rapids, MI 49525 USA
[6] Michigan State Univ, Coll Human Med, Grand Rapids, MI 49503 USA
[7] Spectrum Hlth, Hypertroph Cardiomyopathy Program, Grand Rapids, MI 49503 USA
[8] Michigan State Univ, Coll Human Med, Med, Grand Rapids, MI 49503 USA