1. Obafemi Awolowo College of Health Sciences, Olabisi Onabanjo University; Maternal and Fetal Health Research Unit, Department of Obstetrics and Gynaecology; Sagamu Ogun State Nigeria
2. University of Ibadan; Department of Obstetrics and Gynaecology; College of Medicine Ibadan Nigeria
3. Gynuity Health Projects; 15 East 26th St, Suite 801 New York USA 10010
4. Centro Rosarino de Estudios Perinatales (CREP); Moreno 878, 6th floor Rosario Santa Fe Argentina S2000DKR