1. Department of Psychiatry, Medical University of Białystok, Choroszcz, Poland;
2. Chemistry & Immunochemistry Dept, Medical University of Wrocław, Wrocław, Poland;
3. Medical Institute, Łomża State University of Applied Sciences, Łomża, Poland;
4. Department of Conservative Dentistry, Medical University Białystok, Białystok, Poland;
5. Medical Institute of Medical College of the Universal Education Society, Łomża, Poland;
6. Department of Psychiatry, Medical University of Warsaw, Pruszków, Poland;
7. The Laboratory of Clinical and Epidemiological Research, Republican Research and Practice Center for Mental Health, Minsk, Belarus;
8. Department of Psychiatry and Psychology, Belarusian State Medical University, Minsk, Belarus;
9. Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children’s Memorial Health Institute, Warsaw, Poland;
10. Department of Dietetics and Clinical Nutrition, Medical University, Białystok, Białystok, Poland