Laboratory	Test Method	Prenatal	Carrier *
Academic Medical Center, Department of Genome Analysis and Laboratory for Neurogenetics - Amsterdam, Netherlands	• Sequence analysis of the entire coding region
Cologne University, Institute of Human Genetics - Cologne, Germany	• Sequence analysis of the entire coding region • Linkage analysis
PreventionGenetics, Clinical DNA Testing and DNA Banking - Marshfield, WI, USA	• Sequence analysis of the entire coding region
University of Chicago, Genetic Services Laboratory - Chicago, IL, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis

^* 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.