Nivolumab After Combined Modality Therapy in Treating Patients With High Risk Stage II-IIIB Anal Cancer
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Children's Oncology Group
Eastern Cooperative Oncology Group
National Cancer Institute (NCI)
SWOG Cancer Research Network
NRG Oncology
Mayo Clinic
National Cancer Institute (NCI)
NRG Oncology