Laboratory	Test Method	Prenatal	Carrier *
CGC Genetics - Porto, Portugal	• Uniparental disomy study (UPD)
Emory University School of Medicine, Emory Molecular Genetics Laboratory - Atlanta, GA, USA	• Methylation analysis
Mayo Clinic - Minnesota, Molecular Genetics Laboratory - Rochester, MN, USA	• Uniparental disomy study (UPD)
Shodair Children's Hospital, Genetics Laboratory - Helena, MT, USA	• 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 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.