1. Department of Molecular Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway (J.M.A., J.S., A.O.M.).
2. Department of Pharmacology, Oslo University Hospital, Rikshospitalet, Norway (J.M.A., J.S.).
3. Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Norway (I.A., C.R.C.).