[1] Mayo Clin, Scottsdale, AZ USA
[2] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[3] NCI, Bethesda, MD 20892 USA
[4] Univ N Carolina, Chapel Hill, NC USA
[5] NCI, Rockville, MD USA
[6] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[7] Canc Program Our Lady Lake & Mary Bird Perkins, Baton Rouge, LA USA
[8] Christiana Care Hlth Syst, Helen F Graham Canc Ctr, Newark, DE USA
[9] Gibbs Canc Ctr, Spartanburg, SC USA
[10] Hartford Hosp, Helen & Harry Gray Canc Ctr, Hartford, CT 06115 USA
[11] St Joseph Hosp Orange, Ctr Canc Prevent & Treatment, Orange, CA USA
[12] Mayo Clin, Rochester, MN USA
[13] Dana Farber Canc Inst, Boston, MA 02115 USA