1. Department of Risk Group Dentistry Chair of Pediatric Dentistry, Poznan University of Medical Sciences, 60-812 Poznan, Poland
2. Doctoral School, Poznan University of Medical Sciences, 60-812 Poznan, Poland
3. Department and Clinic of Rheumatology, Rehabilitation, and Internal Medicine, Poznan University of Medical Sciences, 61-545 Poznan, Poland
4. Department of Clinical Psychology, Poznan University of Medical Sciences, 60-812 Poznan, Poland