1. Apoteka “Beograd”, Belgrade, Serbia;
2. Department of Pharmaceutical Technology and Cosmetology, Faculty of pharmacy, University Belgrade, Belgrade, Serbia;
3. Department of Pharmaceutical Technology and Cosmetology, Faculty of pharmacy, University Belgrade, Serbia;
4. Department of Pharmaceutical Technology, Friedrich Schiller University Jena, Jena, Germany;
5. Dermatology department, University of California, San Francisco, CA, USA