School of Medicine in Katowice, Department of Pediatrics and Pediatric Endocrinology, Medical University of Silesia in Katowice, Medykow 16, 40-752 Katowice, Poland
Prof. Pawel Matusik
School of Medicine in Katowice, Department of Pediatrics and Pediatric Endocrinology, Medical University of Silesia in Katowice, Medykow 16, 40-752 Katowice, Poland