Data management {19}
Collected data from the electronic patients files and received questionnaires are processed (coded) into Castor by the local investigator. The key (patient identification list) to the coded data remains safely (locked) in each local hospital and is only accessible for the local investigator. Data extracted from Castor is anonymous and will be handled confidentially and stored not identifiable at the Canisius Wilhelmina Hospital. The collected information will be stored safely for 15 years. The handling of personal data complies with the EU General Data Protection Regulation and the Dutch Act on implementation of the General Data Protection Regulation (in Dutch: Uitvoeringswet AVG, UAVG). The datasets used and/or analysed during the current study are available from the authors on reasonable request.