1. Department of Pediatrics, Oncology, Hematology and Diabetology, ‡Department of Clinical
Genetics, §Department of Biostatistics and Translational Medicine, and ⊥Department of
Ophthalmology and Vision Rehabilitation, Medical University of Lodz, Lodz 91-738, Poland
2. Clinical Research Centre and ∥Department of Endocrinology, Diabetology and Internal
Medicine, Medical University of Bialystok, Bialystok 15-089, Poland