1. Department of Orthopaedics and Orthodontics, Institute of Mother and Child, ul. Kasprzaka 17a, 01-211 Warszawa, Poland
2. Department of Interdisciplinary Dentistry, Pomeranian Medical University, al. Powstańców Wlkp 72, 70-111 Szczecin, Poland
3. Private Praxis Vita-Med 2, Ledochowskiego 16/U3A, 71-004 Szczecin, Poland