1. Loma Linda University, School of Public Health, California,
2. School of Public Health at Loma Linda University, California
3. Vanderbilt University, School of Nursing
4. Center for Health Research at Loma Linda University, School of Public Health, Loma Linda University, California
5. School of Nursing, and the School of Public Health at Loma Linda University, California
6. Loma Linda University, School of Public Health
7. Perinatal Services Network of Loma Linda University Medical Center/Children's, California