Tumor Virus Infections

• Chapel Hill Pediatrics — Chapel Hill, North Carolina, United States
• Duke Children's Primary Care — Durham, North Carolina, United States
• Durham Pediatrics — Durham, North Carolina, United States

• Centre Hospitalier Universitaire de Fort-de-France — Fort-de-France, Martinique

• Hospital General de Alicante — Alicante, Spain
• Hospital "Santa Creu i Sant Pau" — Barcelona, Spain
• Hospital Clínico y Provincial de Barcelona — Barcelona, Spain
• Hospital Juan Canalejo — A Coruña, La Coruña, Spain

• Children's Hospital of Orange County — Orange, California, United States
• Alfred I. duPont Hospital for Children — Wilmington, Delaware, United States
• Children's National Medical Center — Washington D.C., District of Columbia, United States
• Loyola University Medical Center, Cardinal Bernardin Cancer Center — Maywood, Illinois, United States

• Children's Oncology Group — Arcadia, California, United States

• Indiana University Cancer Center — Indianapolis, Indiana, United States

• Divisione di Ematologia e TMO, Ospedale San Maurizio — Bolzano, (bz), Italy
• Ematologia e centro TMO - Ospedale Armando Businco — Cagliari, (ca), Italy
• S.C. Ematologia - Azienda Ospedaliera S. Croce e Carle — Cuneo, (cn), Italy
• Onco-Ematologia - Ospedale Civile — Noale, (ve), Italy

• GSK Investigational Site — Porto Alegre, Rio Grande do Sul, Brazil
• GSK Investigational Site — Campinas, Brazil
• GSK Investigational Site — Curitiba, Brazil
• GSK Investigational Site — Taipei, Taiwan

Not specified

• Banner Good Samaritan Medical Center — Phoenix, Arizona, United States
• City of Hope Comprehensive Cancer Center — Duarte, California, United States