Laboratory	Test Method	Prenatal	Carrier *
Aachen, RWTH, Institute of Human Genetics - Aachen, Germany	• Methylation analysis
Center for Nephrology and Metabolic Disorders, Laboratory for Molecular Diagnostics - Weisswasser, Germany	• Sequence analysis of the entire coding region
Mayo Clinic - Minnesota, Molecular Genetics Laboratory - Rochester, MN, USA	• Uniparental disomy study (UPD)
Salisbury Healthcare NHS Trust, Wessex Regional Genetics Laboratory - Salisbury, Great Britain	• Methylation analysis • Uniparental disomy study (UPD) • Deletion/duplication analysis
Synlab MVZ Humane Genetik Mnchen, Labor fr Humangenetik - München, Germany	• Uniparental disomy study (UPD)
University Hospitals - University Hospitals Laboratory Service Foundation, Center for Human Genetics Laboratory - Cleveland, OH, USA	• Uniparental disomy study (UPD)
University of Chicago, Genetic Services Laboratory - Chicago, IL, USA	• Uniparental disomy study (UPD)
University of Nebraska Medical Center, Human Genetics Laboratory, Munroe-Meyer Institute - Omaha, NE, USA	• Uniparental disomy study (UPD)

^* 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.