1. Laboratory of Psychological and Pedagogical Tests, Czarnieckiego 5A, 80-239 Gdansk, Poland
2. Institute of Psychology, University of Gdansk, Bażyńskiego 4, 80-952 Gdansk, Poland
3. Department of Psychology, Medical University of Gdańsk, M. Skłodowskiej-Curie 3a, 80-210 Gdansk, Poland
4. Periodontologia Anna Skurska Private Dental Practice, Warszawska 14 lok. 2D, 15-063 Bialystok, Poland
5. Department of Oral Surgery, Periodontology and Oral Mucosa Diseases, Poznan University of Medical Sciences, ul. Bukowska 70, 60-812 Poznan, Poland
6. Department of Prosthetic Dentistry and Gerodontology, Poznan University of Medical Sciences, ul. Bukowska 70, 60-812 Poznan, Poland
7. Department of Obstetrics, Gynecology and Oncological Gynecology, Medical University of Warsaw, Kondratowicza 8, 03-242 Warsaw, Poland
8. PerioClinica Magdalena Sulewska Dental Practice, Kujawska 53/1, 15-548 Bialystok, Poland