aCenter on the Early Life Origins of Disease, Department of
Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public
Health, Baltimore, MD, United States
bDepartment of Clinical and Applied Science Education
(Pathology), University of the Incarnate Word School of Osteopathic Medicine, San
Antonio, TX, United States
cDepartment of Pediatrics, Johns Hopkins School of Medicine,
Baltimore, MD, United States
dCenter for Health Policy and Governance, School of Public
Administration, Southwestern University of Finance and Economics, Chengdu, Sichuan,
China
eDepartment of Pathology and Laboratory Medicine, Boston
Medical Center, Boston, MA, United States
fDepartment of Pediatrics, Boston University School of
Medicine and Boston Medical Center, Boston, MA, United States
gIntegrated Research Center for Fetal Medicine, Department
of Obstetrics and Gynecology, Johns Hopkins School of Medicine, Baltimore, MD,
United States
*Corresponding author. Johns Hopkins Bloomberg
School of Public Health, 615 N. Wolfe Street, E4132, Baltimore, MD,
21205–2179, United States. xwang82@jhu.edu (X.
Wang).