1. Department of Life Sciences and Health; Program for Pharmacy; Faculty of Health Sciences; Oslo and Akershus University College of Applied Sciences; Oslo Norway
2. Department of Clinical Pharmacology; The National Center for Epilepsy; Oslo University Hospital; Oslo Norway
3. Department of Economics; Faculty of Social Sciences; University of Oslo; Oslo Norway
4. Department on Internal Medicine and Therapeutics; University of Pavia, and C. Mondino National Neurological Institute; Pavia Italy