Response and Biology-Based Risk Factor-Guided Therapy in Treating Younger Patients With Non-high Risk Neuroblastoma

Brentuximab Vedotin and Combination Chemotherapy in Treating Children and Young Adults With Stage IIB or Stage IIIB-IVB Hodgkin Lymphoma

Long-Term Follow-Up of Patients Who Have Participated in Children's Oncology Group Studies

Study of Kidney Tumors in Younger Patients

Biomarkers in Tumor Tissue Samples From Patients With Newly Diagnosed Neuroblastoma or Ganglioneuroblastoma

Project: Every Child for Younger Patients With Cancer

Tretinoin and Arsenic Trioxide in Treating Patients With Untreated Acute Promyelocytic Leukemia

Active Surveillance, Bleomycin, Carboplatin, Etoposide, or Cisplatin in Treating Pediatric and Adult Patients With Germ Cell Tumors