[1] Univ Zagreb, Sch Med, Univ JJ Strossmayer Sch Med Osijek, Childrens Hosp Zagreb, Osijek, Croatia
[2] Univ Hosp Motol, Dept Paediat, Prague, Czech Republic
[3] Univ Granada, Dept Paediat, Granada, Spain
[4] Umea Univ, Dept Clin Sci, Pediat, Umea, Sweden
[5] Newcastle Hosp NHS Trust, Newcastle Neonatal Serv, Newcastle Upon Tyne, Tyne & Wear, England
[6] Newcastle Univ, Newcastle Upon Tyne, Tyne & Wear, England
[7] Univ Childrens Hosp, Univ Med Ctr Ljubljana, Dept Gastroenterol Hepatol & Nutr, Ljubljana, Slovenia
[8] Erasmus MC, Sophia Childrens Hosp, Rotterdam, Netherlands
[9] Univ Bari, Osped Pediat Giovanni 23, Bari, Italy
[10] Paris Descartes Univ, Necker Enfants Malad Hosp, AP HP, Paris, France
[11] Baylor Coll Med, CNRC, Houston, TX 77030 USA
[12] Univ Copenhagen, Dept Nutr Exercise & Sports, Copenhagen, Denmark
[13] Copenhagen Univ Hosp, Rigshosp, Pediat Nutr Unit, Copenhagen, Denmark
[14] Leeds Teaching Hosp NHS Trust, Leeds, W Yorkshire, England
[15] UCL GOS Inst Child Hlth, Childhood Nutr Res Ctr, London, England