Laboratory	Test Method	Prenatal	Carrier *
Children's Hospital of Philadelphia, Molecular Genetics Laboratory - Philadelphia, PA, USA	• Sequence analysis of the entire coding region
Oxford Medical Genetics Laboratories, Oxford Genetics Laboratories - Oxford, 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

^* 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.