1. Chair and Department of Dermatology, Venereology and Pediatric Dermatology, Medical University of Lublin, Lublin, Poland
2. Department of Cosmetology and Aesthetic Medicine, Medical University of Lublin, Lublin, Poland
3. Department of Medical Statistics, School of Public Health, Center of Postgraduate Medical Education, Warsaw, Poland
4. Chair of Human Anatomy, Department of Normal Anatomy, Medical University of Lublin, Lublin, Poland
5. Department of Public Health, Medical University of Warsaw, Warsaw, Poland