1
President of the Polish Paediatric Society
2
Department of Paediatrics, Medical Centre for Postgraduate Education, Warsaw, Poland
3
Department of Paediatric Endocrinology and Diabetology, Medical University of Lublin, Lublin, Poland
4
Department of Gastroenterology and Infant Nutrition, Warsaw Medical University, Warsaw, Poland
5
Department of Paediatric Bone Marrow Transplantation, Oncology and Haematology, Medical University of Piastów Śląski, Wrocław, Poland
6
Department of Paediatrics, Endocrinology and Paediatric Diabetology, Medical University of Rzeszów, Rzeszów, Poland
7
Department of Paediatric Nephrology, Medical University of Piastów Śląski, Wroclaw, Poland
8
Department of Paediatrics, Gastroenterology, Allergology and Infant Nutrition, Medical University of Gdańsk, Gdańsk, Poland
9
Department of Paediatrics, Haematology and Oncology, A. Jurasz University Hospital No. 1, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
10
Clinic of Paediatrics, Haematology and Paediatric Oncology, Zabrze, Silesian Medical University, Katowice, Poland
11
Department of Paediatric Allergology, Gastroenterology and Nutrition, Medical University, Łódź, Poland
12
Clinical Department of Paediatrics with Division of Allergology, Endocrinology, Neurology – Warsaw Children’s Hospital, Dziekanów Leśny, Poland
13
College of Medical Sciences, University of Rzeszów, Rzeszów, Poland
14
Department of Paediatrics, Oncology and Children’s Immunology, Pomeranian Medical University, Szczecin, Poland