Laboratory	Test Method	Prenatal	Carrier *
Klinikum Stuttgart, Institute of Clinical Genetics - Stuttgart, Germany	• Sequence analysis of the entire coding region • Deletion/duplication analysis
PreventionGenetics, Clinical DNA Testing and DNA Banking - Marshfield, WI, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
Radboud University Nijmegen Medical Centre, Genome Diagnostics Nijmegen - Nijmegen, Netherlands	• Sequence analysis of the entire coding region
Royal Devon and Exeter Hospital, Department of Molecular Genetics - Exeter, Great Britain	• Sequence analysis of the entire coding region
University of Washington, International Registry of Werner Syndrome - Seattle, WA, USA	• Sequence analysis of the entire coding region • Protein 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.