Anal Carcinoma

• UC San Diego Moores Cancer Center — La Jolla, California, United States
• University of California, San Francisco — San Francisco, California, United States
• George Washington University — Washington D.C., District of Columbia, United States
• University of Miami — Miami, Florida, United States

• Ohio State University Comprehensive Cancer Center — Columbus, Ohio, United States

• Oncology dept, Herlev and Gentofte Hospital — Herlev, Denmark

• Agencia Costarricense de Investigaciones Biomédicas (ACIB) — Liberia, Guanacaste Province, Costa Rica

• Univeritätsklinik für Strahlentherapie-Radioonkologie — Graz, Austria
• Institut für Radioonkologie und Strahlentherapie — Darmstadt, Germany
• Klinik und Poliklinik für Strahlentherapie und Radioonkologie — Dresden, Germany
• Klinik für Strahlenheilkunde, Universitätsklinikum Freiburg — Freiburg im Breisgau, Freiburg, Germany

• Los Angeles Gay and Lesbian Center — Los Angeles, California, United States
• UCLA / Jonsson Comprehensive Cancer Center — Los Angeles, California, United States
• Desert AIDS Project — Palm Springs, California, United States

• UCLA / Jonsson Comprehensive Cancer Center — Los Angeles, California, United States

• Ohio State University Comprehensive Cancer Center — Columbus, Ohio, United States

Not specified

• Grupo SOLTI — Barcelona, Spain