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1st Chair of Pediatrics, Department of Pediatric Gastroenterology & Metabolism, Poznań University of Medical Sciences, Szpitalna 27/33; 60-572 Poznań, Poland
Department of Bronchology & Cystic Fibrosis, National Institute for Tuberculosis & Lung Diseases, Pediatric Branch, Prof. J. Rudnika 3B; 34-700 Rabka Zdrój, Poland
1st Chair of Pediatrics, Department of Pediatric Gastroenterology & Metabolism, Poznań University of Medical Sciences, Szpitalna 27/33; 60-572 Poznań, Poland
Department of Dietetics, Chair of Human Nutrition & Hygiene, Poznań University of Life Sciences, Wojska Polskiego 28; 60-637 Poznań, Poland
1st Chair of Pediatrics, Department of Pediatric Gastroenterology & Metabolism, Poznań University of Medical Sciences, Szpitalna 27/33; 60-572 Poznań, Poland