1. MD Anderson Cancer Ctr, Houston, TX; Univ of Rochester, Rochester, NY; Univ Hosp - Madison, Madison, WI; Oregon Health Sciences Univ, Portland, OR; New York Weill-Cornell Medcl Ctr, New York, NY; Univ of Pennsylvania Cancer Ctr, Philadelphia, PA; Vanderbilt Univ, Nashville, TN; Kansas City Cancer Ctr, Kansas City, MO; Georgetown Univ Medcl Ctr, Washington, DC