[1] Fed Univ Lokoja, Dept Sociol, Lokoja, Nigeria
[2] Usmanu Danfodiyo Univ, Dept Sociol, Sokoto, Nigeria
[3] Univ Johannesburg, Dept Sociol, Johannesburg, South Africa
[4] Teesside Univ, Sch Hlth & Life Sci, Middlesbrough, England
[5] Univ Puthisastra, Fac Dent, Phnom Penh, Cambodia
[6] Univ Rwanda, Sch Dent, Kigali, Rwanda
[7] Cephas Hlth Res Initiat Inc, Ibadan, Nigeria