Vitamin D levels in autoimmune thyroiditis and a control group among the Polish population

1. Student Scientific Society, Section of Endocrinology, Poznan University of Medical Sciences, Poznan, Poland; 2. Department of Clinical Neuroimmunology, Poznan University of Medical Sciences, Poznan, Poland; 3. Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poznan, Poland; 4. Neuroimmunological Unit, Institute of Experimental and Clinical Medicine, Polish Academy of Sciences; 5. Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland..