1. University Department of Psychiatry, Campus Antwerp University Hospital (UZA), Antwerp, Belgium;
2. Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp (UA), Antwerp, Belgium;
3. Department of Abdominal Surgery, Antwerp University Hospital (UZA), Antwerp, Belgium;
4. General Practice, Antwerp, Belgium;
5. Department of Neurology, Faculty of Medicine and Health Sciences, Institute Born Bunge, Antwerp University Hospital (UZA), University of Antwerp, Antwerp, Belgium