Laboratory	Test Method	Prenatal	Carrier *
Baylor College of Medicine, Medical Genetics Laboratories - Houston, TX, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
Buffalo General Medical Center, Robert Guthrie Biochemical and Molecular Genetics Laboratory - Buffalo, NY, USA	• Enzyme assay
Centogene AG, Rare Disease Company - Rostock, Germany	• Sequence analysis of the entire coding region
Duke University Health System, Glycogen Storage Disease Laboratory - Durham, NC, USA	• Enzyme assay
GSTS Pathology, DNA Laboratory - London, Great Britain	• Sequence analysis of the entire coding region
PreventionGenetics, Clinical DNA Testing and DNA Banking - Marshfield, WI, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
Sheffield Children's NHS Foundation Trust, Sheffield Diagnostic Genetics Service - Sheffield, Great Britain	• Sequence analysis of the entire coding region

^* Carrier column is relevant to autosomal recessive and X-linked inheritance; column will be blank when it is not relevant (e.g. autosomal dominant inheritance, microdeletions/duplications) and/or is not offered by the lab.