Presentations from the SWE-REG webinar October 1, 2020 Anita Berglund presented SINGS Manar Yanes from UGIR, Karolinska Institutet: Survival after surgery vs medication for gastro-oesophageal reflux disease in a Nordic registry-based study Ulf Ekelund and Stefan Larson from AIR, Lund: AIR Lund Chest Pain Substudy – Explainable clinical decision support based on health care register data Michael C Sachs from MEB, Karolinska Institutet: Methods for survival outcomes with competing risks in register research