Addendum: ACMG Practice Guideline: lack of evidence for MTHFR polymorphism testing

Affiliations

• ¹ Department of Obstetrics, Gynecology, and Reproductive Science, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
• ² Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, USA.
• ³ Genetic Medicine Central California, University of California, San Francisco-Fresno, Fresno, CA, USA.
• ⁴ Department of Pediatrics/Human Development, Spectrum Health Hospitals and College of Medicine, Michigan State University, Grand Rapids, MI, USA.