1. Institute of Human Virology Nigeria, Plot 252 Herbert Macaulay Way, Abuja 900246, Nigeria
2. School of Social Work, University of Georgia, 279 Williams Street, Athens, GA 30602, USA
3. Department of Obstetrics and Gynaecology, Aminu Kano Teaching Hospital, PMB 3452, Kano 700231, Nigeria
4. Department of Health Promotion and Education, University of Ibadan, Ibadan 200284, Nigeria
5. School of Social Work, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
6. Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland Baltimore, 725 West Lombard Street, Baltimore, MD 21201, USA