[1] Ghent Univ Hosp, Dept Pediat, Pediat Psychol, Ghent, Belgium
[2] Leuven Univ Hosp, Dept Child Nephrol & Organ Transplantat, Louvain, Belgium
[3] Antwerp Univ Hosp, Dept Pediat Nephrol, Edegem, Belgium
[4] Queen Fabiola Childrens Univ, Dept Pediat Nephrol, Hosp Brussels, Brussels, Belgium
[5] Hlth Grp CHC Liege, Dept Pediat Nephrol, CHC MontLegia, Liege, Belgium
[6] St Luc Brussels Univ Hosp, Dept Pediat Nephrol, Brussels, Belgium
[7] Ghent Univ Hosp, Dept Nephrol, Ghent, Belgium
[8] Ghent Univ Hosp, Dept Pediat Nephrol & Rheumatol, Ghent, Belgium