Laboratory	Test Method	Prenatal	Carrier *
Baylor College of Medicine, Medical Genetics Laboratories - Houston, TX, USA	• Analyte
Centre de Biologie Est - Hospices Civils de Lyon, Maladies hrditaires du mtabolisme - Bron cedex, France	• Sequence analysis of the entire coding region • Analyte • Enzyme assay
Cologne University, Institute of Human Genetics - Cologne, Germany	• Sequence analysis of the entire coding region
Denver Genetic Laboratories, UCD Biochemical Genetics Laboratory - Aurora, CO, USA	• Analyte
Duke University Health System, Molecular Diagnostics Laboratory - Durham, NC, USA	• Sequence analysis of the entire coding region
Duke University Health System, Pediatric Biochemical Genetics Lab - Durham, NC, USA	• Analyte

^* 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.