1. Department of Psychiatry and Neurochemistry, AgeCap Center Gothenburg University Gothenburg Sweden
2. Statistikkonsulterna AB Gothenburg Sweden
3. Department of Neurosciences, Mental Health and Sensory Organs, Suicide Prevention Center, Sant'Andrea Hospital Sapienza University Rome Italy
4. Region Västra Götaland Sahlgrenska University Hospital, Psychosis Clinic Mölndal Sweden