Laboratory	Test Method	Prenatal	Carrier *
Diagenom GmbH, Medical Genetics Laboratory - Rostock, Germany	• Sequence analysis of the entire coding region
diagenos - Osnabrueck, Germany	• Sequence analysis of the entire coding region
Karolinska University Hospital, Centre for Inherited Metabolic Diseases - Stockholm, Sweden	• Sequence analysis of the entire coding region • Analyte • Enzyme assay
Klinikum Stuttgart, Institute of Clinical Genetics - Stuttgart, Germany	• Sequence analysis of the entire coding region
Laboratory for Molecular Diagnostics, Labor-MVZ Westmecklenburg - Schwerin, Germany	• Sequence analysis of the entire coding region
Mayo Clinic - Minnesota, Biochemical Genetics Laboratory - Rochester, MN, USA	• Analyte • Enzyme assay
Medgene, MedGene - Bratislava, Slovakia	• Sequence analysis of the entire coding region
Mount Sinai School of Medicine, Mount Sinai Genetic Testing Laboratory-Porphyria DNA Testing - New York, NY, USA	• Sequence analysis of the entire coding region
Praxis fuer Humangenetik Wien - Vienna, Austria	• Sequence analysis of the entire coding region
Quest Diagnostics Nichols Institute - California, Biochemical Genetics Laboratory - San Juan Capistrano, CA, USA	• Analyte
University of Texas Medical Branch, Porphyria Laboratory - Galveston, TX, USA	• Analyte

^* 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.