1. Institute
of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
2. Drug
research program, Division of Pharmaceutical Biosciences, Faculty
of Pharmacy, University of Helsinki, Viikinkaari 5E,
P.O. Box 56, FI-00014 Helsinki, Finland
3. Institute
of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
4. Institute
of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
5. Institute
of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia