1. Department of Skin Structural Studies, Medical University of Silesia in Katowice, School of Pharmacy with Division of Laboratory Medicine in Sosnowiec, Sosnowiec, Poland.
2. University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Material Science, Katowice, Poland.
3. Provincial Sanitary and Epidemiological Station in Katowice, Katowice, Poland.
4. Department of Animal Histology and Embryology, University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Katowice, Poland.