1. School of Public Health, Department of Health Behavior and Health Education University of Michigan Ann Arbor Michigan USA
2. College of Medicine and Life Sciences University of Toledo Toledo Ohio USA
3. Department of Obstetrics and Gynaecology University of Ghana Accra Ghana
4. Department of Family Medicine Stanford University Stanford California USA
5. Ghana College of Physicians and Surgeons Accra Ghana
6. Department of Obstetrics and Gynaecology Kwame Nkrumah University of Science and Technology Kumasi Ghana
7. Department of Obstetrics and Gynecology University of Michigan Ann Arbor Michigan USA