School of Pharmacy, University of Eastern Finland, Kuopio, Finland.|Laboratory of Physics, Tampere University of Technology, Tampere, Finland.|Department of Internal Medicine VIII, University Hospital Tuebingen, Tuebingen, Germany.|School of Pharmacy, University of Eastern Finland, Kuopio, Finland.|Laboratory of Physics, Tampere University of Technology, Tampere, Finland.|School of Pharmacy, University of Eastern Finland, Kuopio, Finland.