Concomitant Radiation and Cisplatin With and Without Tirapazamine in Treatment of Advanced Head and Neck Cancer

University of Rochester Medical Center, Rochester

Johns Hopkins Hospital, Baltimore

Eastern Virginia Medical School, Norfolk

Medical University of South Carolina, Charleston

H-Lee Moffitt Cancer Center and Research, Tampa

Harper Hospital, Detroit

University of Chicago Medical Center, Chicago

Foundation for Cancer Research and Education, Phoenix

Stanford University Medical Center, Palo Alto

VA New Jersey Health Care Medical Center, East Orange