1. Department of Obstetrics, Gynecology and Reproductive SciencesUniversity of California San Diego La Jolla California
2. Division of GeneticsDepartment of PediatricsUniversity of California San Diego La Jolla California
3. Department of PathologyUniversity of Utah Salt Lake City Utah
4. ARUP Laboratories Salt Lake City Utah
5. Division of Maternal‐Fetal MedicineDepartment of Obstetrics, Gynecology, and Reproductive SciencesUniversity of California San Diego La Jolla California