[1] Rush Univ, Med Ctr, Chicago, IL 60612 USA
[2] Phoenix Childrens Hosp, Phoenix, AZ USA
[3] Univ Iowa, Iowa City, IA USA
[4] Indiana Hemophilia & Thrombosis Ctr, Indianapolis, IN USA
[5] Univ Michigan, Ann Arbor, MI 48109 USA
[6] City Hope Natl Med Ctr, Duarte, CA 91010 USA