Surgery in Treating Patients With Early Stage Anal Canal or Perianal Cancer and HIV Infection
AIDS Malignancy Consortium
AIDS Malignancy Consortium
AIDS Malignancy Consortium
Centre Hospitalier Universitaire de Besancon
Sun Yat-sen University
Eastern Cooperative Oncology Group
Centre Hospitalier Universitaire de Besancon
UNICANCER
Centre Hospitalier Universitaire de Besancon
Radiation Therapy Oncology Group
Radiation Therapy Oncology Group
Instituto do Cancer do Estado de São Paulo
National Cancer Institute (NCI)