Data availability
Access to individual patient-level data can be requested after publication via the corresponding authors (othman.al-sawaf@uk-koeln.de and barbara.eichhorst@uk-koeln.de), who will facilitate a central review by the GCLLSG within 6 months. The data will be released to such requesters with necessary agreements to enforce terms such as security, patient privacy and consent of specified data use, consistent with evolving, applicable data protection laws.