Department of Pediatrics, Gastroenterology and Nutrition, Medical Faculty Collegium Medicum University of Warmia and Mazury, Children’s Hospital Zolnierska St 18A 10-561 Olsztyn, Poland.
Prof. Dr. Elżbieta Jarocka-Cyrta
Department of Pediatrics, Gastroenterology and Nutrition, Medical Faculty Collegium Medicum University of Warmia and Mazury, Children’s Hospital Zolnierska St 18A 10-561 Olsztyn, Poland.