[1] Royal Coll Phys Ireland, Dublin, Ireland
[2] Natl Childrens Hosp, Trinity Coll Dublin, Dept Paediat, Dublin, Ireland
[3] Union Natl European Pediat Soc & Assoc, European Pediat Assoc EPA UNEPSA, Berlin, Germany
[4] Univ Hosp Split, Med Sch Split, Split, Croatia
[5] Istanbul Univ, Istanbul Univ Cerrahpasa, Fac Med, Istanbul, Turkey
[6] Russian Med Res & Sci Med Univ Moscow, Moscow, Russia
[7] Tel Aviv Univ, Mayeney Hayeshuah Med Ctr, Bnei Brak & Sackler Sch Med, Dept Pediat, Tel Aviv, Israel
[8] Univ Foggia, Sci Inst Casa Sollievo Sofferenza, Dept Pediat, Foggia, Italy