Planned organ preservation for elderly patients with rectal cancer using short course radiotherapy and a contact brachytherapy boost-an International multi-institution analysis oleh Jacqueline Steinke, Chloe Jordan, Savvas Rossides, Helen Minnaar, Jimmy Yu, Adrian Franklin, Tim Rockall, Amandeep Singh Dhadda, Iain Andrew Hunter, Jamie Mills, Eliot Chadwick, Rafael Silverman, Joakim Folkesson, Calin Radu, Arthur Sun Myint, Alexandra J. Stewart