1. Regional Specialized Hospital in Wroclaw, Research and Development Center, Wroclaw, Poland.
2. Department of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland.
3. Department of Internal Medicine, 4th Military Hospital, Wroclaw, Poland.
4. Illimites Foundation, Wroclaw, Poland.
5. Department of Clinical Proceedings, Faculty of Health Science, Wroclaw Medical University, Wroclaw, Poland.
6. Department of Surgery, 4th Military Hospital, Wroclaw, Poland.
7. Department of Clinical Nursing, Wroclaw Medical University, Wroclaw, Poland.