[1] NCI, Bethesda, MD 20892 USA
[2] Grp Hlth Cooperat Puget Sound, Seattle, WA 98121 USA
[3] Dartmouth Coll Sch Med, Lebanon, NH USA
[4] Univ Alabama, Birmingham, AL USA
[5] Univ Kentucky, Lexington, KY USA
[6] Vermont Canc Ctr, Burlington, VT USA
[7] UCSF, San Francisco, CA USA
[8] Univ New Mexico, Albuquerque, NM 87131 USA
[9] Univ N Carolina, Chapel Hill, NC USA