Anus Neoplasms

• GBUZ Moscow Clinical Scientific Center named after Loginov MHD — Moscow, Russia
• FSBI N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of Russia — Moscow, Russia
• FSBI National Medical Research Center for Obstetrics, Gynecology and Perinatology named after Academician V.I.Kulakov of the Ministry of Health of Russia — Moscow, Russia
• National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation — Moscow, Russia

• University of Washington AIDS CRS — Seattle, Washington, United States

• University of California, San Francisco — San Francisco, California, United States

• Notre-Dame Hospital (Centre Hospitalier de l'Université de Montréal) — Montreal, Quebec, Canada
• Royal Victoria Hospital (McGill University Health Center) — Montreal, Quebec, Canada

• Holden Comprehensive Cancer Center — Iowa City, Iowa, United States

• Research Center — San Francisco, California, United States
• Research Center — Orlando, Florida, United States
• Research Center — Chicago, Illinois, United States
• Research Center — New York, United States

• University of Texas School of Public Health — Houston, Texas, United States

Not specified

• LA Gay & Lesbian Community Service Ctr., Lamba Med. Group CRS — Los Angeles, California, United States
• Castro-Mission Health Ctr. CRS — San Francisco, California, United States
• Univ. of Colorado Health Science Ctr. CRS — Denver, Colorado, United States
• Eastside Family Health Ctr. CRS — Denver, Colorado, United States

• UC Health — Cincinnati, Ohio, United States