[1] Independent Univ Bangladesh, Ctr Hlth Populat & Dev, Dhaka, Bangladesh
[2] Univ Ibadan, Natl Inst Hlth Res Project, Ibadan, Oyo State, Nigeria
[3] Aga Khan Univ, Community Hlth Sci Dept, Karachi, Pakistan
[4] African Populat & Hlth Res Ctr, Nairobi, Kenya
[5] Univ Warwick, Warwick Med Sch, Div Hlth Sci, Coventry, W Midlands, England
[6] Univ Ibadan, Fac Social Sci, Dept Sociol, Ibadan, Oyo State, Nigeria
[7] Univ Witwatersrand, Sch Publ Hlth, Ctr Hlth Policy, Johannesburg, South Africa
[8] Univ Birmingham, Inst Appl Hlth Res, Coll Med & Dent Sci, Birmingham, W Midlands, England
[9] Univ Ibadan, Coll Med, Fac Clin Sci, Dept Obstet & Gynaecol, Ibadan, Oyo State, Nigeria
[10] Univ Warwick, Inst Global Sustainable Dev, Coventry, W Midlands, England
[11] Univ Lancaster, Lancaster Med Sch, Lancaster, England
[12] Univ Warwick, Warwick Med Sch, Warwick Clin Trials Unit, Coventry, W Midlands, England
[13] Nigerian Acad Sci, Lagos, Nigeria
[14] Univ Ibadan, Coll Med, Dept Periodontol & Community Dent, Fac Dent, Ibadan, Oyo State, Nigeria
[15] Univ Ibadan, Fac Publ Hlth, Coll Med, Dept Community Med, Ibadan, Oyo State, Nigeria
[16] Univ Liberal Arts Bangladesh, Dhaka, Bangladesh
[17] Univ Ibadan, Dept Geog, Fac Social Sci, Ibadan, Oyo State, Nigeria