1. Department of Anesthesiology and Intensive Care; Institute of Clinical Sciences; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
2. Gillberg Neuropsychiatry Centre; Institute of Neuroscience and Physiology; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
3. Centre for Ethics, Law, and Mental Health; Institute of Neuroscience and Physiology; University of Gothenburg; Gothenburg Sweden
4. Statistical Consultation Group; Gothenburg Sweden
5. Department of Medical Epidemiology and Biostatistics; Karolinska Institute; Stockholm Sweden