Informations about the meeting November 18th11.00-4.00Novotel Brainpark, Rotterdam Program 10.30-11.00 Coffee Welcome from Working Group Chair 11.00-11.30 HDR Guidelines and dosimetry update Alex Stewart and Evert Van Limbergen 11.30-12.00 Project proposal: towards consensus on target volume delineation in HDR cylinder brachytherapy Yves Williems Maastricht, The Netherlands 12.00-1.00 Lunch 1.00-1.30 Evert Endorectal contact radiation boosting: making the case for dose and volume reporting Evert van Limbergen Maastricht, The Netherlands 1.30-2.00 OPERA trial update Jean-Pierre Gerard, Nice, France 2.00-2.30 EXPRESS trial update Sunny Myint, Clatterbridge, UK 2.30-3.00 CITRuS trial update Alex Stewart, Guildford, UK 3.00-3.30 Coffee 3.30-4.00 Future directions-guidelines, trials discussion Closing remarks For further information, please visit the website of the event https://www.estro.org/Workshops/GEC-ESTRO-workshop-2021