Publication The central role of external quality assurance in harmonisation and standardisation for laboratory medicine.
Publication Harmonisation of serum dihydrotestosterone analysis: establishment of an external quality assurance program.
Publication Vitamin D insufficiency in the first 6 months of infancy and challenge-proven IgE-mediated food allergy at 1 year of age: a case-cohort study.
Publication Reply to Engelhardt, Thomas; Schmidt, Alexander; Machotta, Andreas, regarding their comment 'Prevent the Need for Front of Neck Access'.
Publication Bladder continent catheterizable conduit (the Mitrofanoff procedure): Long-term issues that should not be underestimated.