1. Department of Molecular Biology, University of Gdansk, Gdansk, Poland
2. The Children’s Memorial Health Institute, Warsaw, Poland
3. Biofarm, Poznan, Poland
4. Department of Pediatrics, Pediatric Gastroenterology, Hepatology and Nutrition, Medical University of Gdansk, Gdansk, Poland
5. Laboratory of Molecular Biology (affiliated with the University of Gdansk), Instituite of Biochemistry and Biophysics, Polish Academy of Sciences, Gdansk, Poland
6. Department of Genetics, Institute of Psychiatry and Neurology, Warsaw, Poland