1. Robbins College of Health and Human Science, Baylor University, Waco, Texas
2. Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor Scott & White Medical Center – Temple, Temple, Texas
3. Department of Anesthesiology, University of Florida-Jacksonville, Jacksonville, Florida
4. Baylor Scott & White Research Institute, Temple, Texas
5. Department of Anesthesiology, Baylor Scott & White Medical Center – Temple, Temple, Texas