[1] St Jude Childrens Res Hosp, Memphis, TN 38105 USA
[2] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[3] Univ Texas, MD Anderson Canc Ctr, Houston, TX 77030 USA
[4] Harvard Univ, Sch Med, Boston, MA USA
[5] Stanford Univ, Sch Med, Palo Alto, CA 94304 USA
[6] Kuzell Inst Arthrit, San Francisco, CA USA
[7] Univ Manitoba, Winnipeg, MB, Canada
[8] Princess Margaret Hosp, Toronto, ON M4X 1K9, Canada
[9] CHU Vaudois, CH-1011 Lausanne, Switzerland