1 Great Ormond Street Hospital for Children, London WC1N 3JH, UK; Institute of Child Health, London WC1N 1EH, UK. Electronic address: walter.mihatsch@gmx.de.
2 The Children's Memorial Health Institute, Warsaw, Poland.
3 Dr. von Hauner Children's Hospital, Medical Center of the University of Munich, Munich, Germany.
4 Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
5 University Children's Hospital, Zurich, Switzerland.
6 University Hospital Motol, Prague, Czech Republic.
7 Shanghai Jiao Tong University, Shanghai, China.
8 Department of Paediatrics, School of Medicine, University of Granada, Granada, Spain.
9 Polytechnic University of Marche, Ancona, Italy.
10 Université de Nantes, Nantes, France.
11 Department of Pediatrics, University of Pécs, Pécs, Hungary.
12 Department of Clinical Sciences, Pediatrics, Umeå University, Sweden.
13 Newcastle University, Newcastle upon Tyne, UK.
14 UCL Great Ormond Street Institute of Child Health, London, UK.
15 University Medical Centre Ljubljana, Ljubljana, Slovenia.
16 University Children's Hospital, Tuebingen, Germany.
17 University Sordonne-Paris-Cité, France; Paris-Descartes Medical School, Paris, France.
18 Schneider Children's Medical Center of Israel, Petach Tikva, Israel; Carmel Medical Center, Haifa, Israel.
19 Great Ormond Street Hospital for Children, NHS Foundation Trust, UCL Institute of Child Health, London, UK.
20 Children's Hospital Zagreb, University of Zagreb School of Medicine, University of J. J. Strossmayer School of Medicine Osijek, Croatia.
21 CHU La Réunion, Saint Pierre, France.
22 Ev. Waldkrankenhaus Spandau, Berlin, Germany.
23 Department of Pediatrics and Pediatric Surgery, Intensive Care, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands.
24 Children's Hospital, University of Zagreb School of Medicine, Zagreb, Croatia.
25 k LMU - Ludwig-Maximilians-Universität Munich, Dr. von Hauner Children's Hospital, Munich, Germany.
26 Department of Pediatrics, Nutrition and Metabolic Diseases, The Children's Memorial Health Institute, Warsaw, Poland.
30 Department of Pediatrics, Division of Neonatology, The Wilf Children's Hospital, The Shaare Zedek Medical Center, Jerusalem, Israel; Tel Aviv University, Tel Aviv, Israel.
31 Department of Nutrition, Exercise and Sports, University of Copenhagen, Paediatric Nutrition Unit, Rigshospitalet, Copenhagen, Denmark.
32 Oslo University Hospital, Oslo, Norway.
33 Laboratoire CarMEN, Claude Bernard University Lyon 1, Hopital croix rousse, Lyon, France.
34 LMU - Ludwig-Maximilians-Universität Munich, Dr. von Hauner Children's Hospital, Munich, Germany.
35 The General Infirmary at Leeds, Leeds, UK.
36 Bnai Zion Medical Center, Rappaport Faculty of Medicine, Technion, Haifa, Israel.
37 Department of Neonatology, La Paz University Hospital, Red de Salud Materno Infantil y Desarrollo - SAMID, Universidad Autónoma de Madrid, Madrid, Spain.
38 CHU de Liège, CHR de la Citadelle, Université de Liège, Belgium.
39 Schneider Children's Medical Center of Israel, Petach Tikva, Israel; Tel Aviv University, Tel Aviv, Israel.
40 Great Ormond Street NHS Trust, London, UK.
41 General University Hospital, First Faculty of Medicine, Charles University in Prague, Czech Republic.
42 Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands.
43 OLVG, Amsterdam, The Netherlands.
44 Xin Hua Hospital, Shanghai, China.
45 Department of Gastroenterology and Nutrition, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.