Laboratory	Test Method	Prenatal	Carrier *
Connective Tissue Gene Tests - Allentown, PA, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
GeneDx - Gaithersburg, MD, 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.