Rectal Diseases

• Istituto Nazionale Tumori - IRCCS — Milan, Via Giacomo Venezian, 1, Italy
• Fondazione del Piemonte per l'Oncologia - IRCCS — Candiolo, Italy
• Grande Ospedale Metropolitano Niguarda — Milan, Italy
• Istituto Oncologico Veneto - IRCCS — Padova, Italy

• Technische Universität Dresden — Dresden, Saxony, Germany

• Local Institution — Princeton, New Jersey, United States

• Department of Oncology, Karolinska University Hospital — Stockholm, Sweden

• University of Puerto Rico, Medical Sciences Campus — San Juan, Puerto Rico

• University Hospitals of Cleveland Case Medical Center — Cleveland, Ohio, United States

• Erebouni Medical Center — Yerevan, Armenia
• Izmirlyan Medical Center — Yerevan, Armenia

Not specified

• Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill — Chapel Hill, North Carolina, United States

• Hospital La Princesa — Madrid, Spain