[1] Uppsala Univ, Dept Pharm, Uppsala, Sweden
[2] Danderyd Hosp, Karolinska Inst, Dept Clin Sci, Div Cardiovasc Med, Stockholm, Sweden
[3] Karolinska Inst, Dept Lab Med, Stockholm, Sweden
[4] Karolinska Inst, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden
[5] Uppsala Univ, Fac Pharm, Dept Pharm, Box 580, S-75123 Uppsala, Sweden