Living with Intoxication-Type Inborn Errors of Metabolism: A Qualitative Analysis of Interviews with Paediatric Patients and Their Parents -- Switch from Sodium Phenylbutyrate to Glycerol Phenylbutyrate Improved Metabolic Stability in an Adolescent with Ornithine Transcarbamylase Deficiency -- Inherited Metabolic Disorders: Efficacy of Enzyme Assays on Dried Blood Spots for the Diagnosis of Lysosomal Storage Disorders -- Parent Coping and the Behavioural and Social Outcomes of Children Diagnosed with Inherited Metabolic Disorders -- Sleep Disturbance, Obstructive Sleep Apnoea and Abnormal Periodic Leg Movements: Very Common Problems in Fabry Disease -- Spurious Elevation of Multiple Urine Amino Acids by Ion-Exchange Chromatography in Patients with Prolidase Deficiency -- Quick Diagnosis of Alkaptonuria by Homogentisic Acid Determination in Urine Paper Spots -- Mitochondrial Complex III Deficiency with Ketoacidosis and Hyperglycemia Mimicking Neonatal Diabetes -- Diagnosis, Treatment, and Clinical Outcome of Patients with Mitochondrial Trifunctional Protein/Long-Chain 3-Hydroxy Acyl-CoA Dehydrogenase Deficiency -- N-Acetylcysteine Therapy in an Infant with Transaldolase Deficiency Is Well Tolerated and Associated with Normalization of Alpha Fetoprotein Levels -- Severe Cardiomyopathy as the Isolated Presenting Feature in an Adult with Late-Onset Pompe Disease: A Case Report -- Chronic Diarrhea in l-Amino Acid Decarboxylase (AADC) Deficiency: A Prominent Clinical Finding Among a Series of Ten French Patients -- Hyperammonemia due to Adult-Onset N-Acetylglutamate Synthase Deficiency -- Glycine N-Methyltransferase Deficiency: A Member of Dysmethylating Liver Disorders? -- Disease Heterogeneity in Na+/Citrate Cotransporter Deficiency -- Erratum to: Disease Heterogeneity in Na+/Citrate Cotransporter Deficiency.