[1] Dana Farber Canc Inst, Boston, MA 02115 USA
[2] Amer Soc Clin Oncol, Alexandria, VA 22314 USA
[3] Technol Evaluat Ctr, Blue Cross Blue Shield Assoc, Chicago, IL USA
[4] Coastal Canc Ctr, Myrtle Beach, SC USA
[5] Debbies Dream Fdn, Davie, FL USA
[6] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA