1

ERNDIM Quantitative Organic Acids in Urine: Highlights and Recommendations Martens GA, Weykamp C, Scott C, Duran M

2

External Quality Assessment for Enzymatic Analysis of Lysosomal Disorders. Comparison of enzymatic performance in Fibroblasts and Dry Blood Spots Schoonderwoerd K, de Graaf I, Weykamp C

3

Problems of Acylcarnitine Analysis when Carnitine is Depleted: Insights from the ERNDIM Qualitative Acylcarnitine Scheme Turner C, Dalton N

4

Treatment, Monitoring and Multi-centre Studies in Inherited Metabolic Disorders (IEM) Fowler B, Gardner S, Weykamp C