1. Department of Drug Form Technology, Wroclaw Medical University, ul. Borowska 211, 50-556 Wroclaw, Poland
2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, Okólna 2 str., 50-950 Wroclaw, Poland
3. School of Pharmacy, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, United Kingdom
4. Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria