[1] Stanford Sch Med, Stanford, CA USA
[2] Emory Univ, Atlanta, GA USA
[3] Natl Canc Inst, Bethesda, MD USA
[4] Univ Southern Calif, Los Angeles, CA USA
[5] Univ Southern Calif, Keck Sch Med, Dept Preventat Med, Los Angeles, CA USA
[6] Informat Management Serv Inc, Rockville, MD USA
[7] Univ Michigan, Ann Arbor, MI USA
[8] NIH, NCI, Bethesda, MD USA