1. Aetiology of acute respiratory infection in preschool children requiring hospitalisation in Europe-results from the PED-MERMAIDS multicentre case-control study
  2. Enteral Ca-intake may be low and affects serum-PTH-levels in pre-school children with chronic kidney disease
  3. Influenza and pneumococcus vaccination rates in pediatric dialysis patients in Europe: Recommendations vs reality A European Pediatric Dialysis Working Group and European Society for Pediatric Nephrology Dialysis Working Group Study
  4. The impact of incomplete registration on survival rate of children with very rare tumors