Surgery in Treating Patients With Early Stage Anal Canal or Perianal Cancer and HIV Infection
AIDS Malignancy Consortium
AIDS Malignancy Consortium
Eastern Cooperative Oncology Group
Duke University
Instituto do Cancer do Estado de São Paulo
AHS Cancer Control Alberta
AIDS Malignancy Consortium
National Cancer Institute (NCI)
Centre Hospitalier Universitaire de Besancon
University of Sao Paulo
Sun Yat-sen University
M.D. Anderson Cancer Center
Eastern Cooperative Oncology Group
Eastern Cooperative Oncology Group
Centre Hospitalier Universitaire de Besancon
Radiation Therapy Oncology Group
AHS Cancer Control Alberta
Instituto do Cancer do Estado de São Paulo