Dr. Amundsen is from the Department of Obstetrics and Gynecology at the Duke University Medical Center, Durham, North Carolina; email: cindy.amundsen@duke.edu. Dr. Preud'Homme is from the Department of Medicine at the Duke University School of Medicine, Durham, North Carolina; email: xavier.preudhomme@duke.edu.

Financial Disclosure The authors did not report any potential conflicts of interest.