1. Research Centre for Pharmaceutical Engineering, Inffeldgasse 13/2, 8010 Graz, Austria
2. Institute of Chemistry, University of Graz, Heinrichstr. 28, 8010 Graz, Austria
3. Drug Product Design, Worldwide Research and Development, Pfizer Inc, 280 Shennecossett Rd, Groton, Connecticut 06340, United States
4. Institute for Process and Particle Engineering, Graz University of Technology, Inffeldgasse 13/3, 8010 Graz, Austria