Laboratory	Test Method	Prenatal	Carrier *
Center for Nephrology and Metabolic Disorders, Laboratory for Molecular Diagnostics - Weisswasser, Germany	• Sequence analysis of the entire coding region
Hospital for Sick Children, Molecular Genetics Laboratory - Toronto, Canada	• Sequence analysis of the entire coding region
Newcastle Upon Tyne Hospitals NHS Foundation Trust, Northern Molecular Genetics Service - Newcastle Upon Tyne, Great Britain	• Sequence analysis of the entire coding region
PreventionGenetics, Clinical DNA Testing and DNA Banking - Marshfield, WI, USA	• Deletion/duplication analysis
Radboud University Medical Centre, Laboratory of Genetic, Endocrine, and Metabolic Diseases - Nijmegen, Netherlands	• Sequence analysis of the entire coding region
Secugen SL - Madrid, Spain	• Sequence analysis of the entire coding region
University of Iowa Hospital and Clinics, Molecular Otolaryngology and Renal Research Laboratories - Iowa City, IA, 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.