1. Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-100 44 Stockholm, Sweden
2. Section of Neuropharmacology and Addiction Research, Department of Pharmaceutical Biosciences, Uppsala University, SE-751 05 Uppsala, Sweden
3. Department of Genetics and Microbiology, University of Murcia, Campus Universitario de Espinardo, 30100 Murcia, Spain