[1] St Joseph Mercy Hosp, Ann Arbor, MI 48104 USA
[2] Vanderbilt Univ, Med Ctr, Nashville, TN USA
[3] Coll Amer Pathologists, Northfield, MN USA
[4] Northwestern Univ, Chicago, IL 60611 USA
[5] Amer Soc Clin Oncol, Alexandria, VA USA
[6] Hosp Ramon & Cajal, Madrid, Spain
[7] Univ N Carolina, Chapel Hill, NC 27514 USA
[8] Yale Univ, Sch Med, New Haven, CT USA
[9] Univ Calif San Francisco, San Francisco, CA 94143 USA
[10] Princess Margaret Canc Ctr, Toronto, ON, Canada
[11] Univ Toronto, St Michaels Hosp, Toronto, ON, Canada
[12] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA
[13] Stanford Univ, Ctr Med, Stanford, CA 94305 USA
[14] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA