[1] Cephas Hlth Res Initiat Inc, Campaign Head & Neck Canc Educ CHANCE Program, Ibadan, Oyo State, Nigeria
[2] Cephas Hlth Res Initiat Inc, Tobacco Res & Advocacy Grp, Ibadan, Oyo State, Nigeria
[3] Teesside Univ, Sch Hlth & Life Sci, Middlesbrough, Cleveland, England
[4] Mental & Oral Hlth Dev Org Inc, Birnin Kebbi, Kebbi State, Nigeria
[5] Univ Coll Hosp, Dept Periodontol & Community Dent, Ibadan, Oyo State, Nigeria
[6] Usmanu Danfodiyo Univ Teaching Hosp, Dept Dent & Maxillofacial Surg, Sokoto, Sokoto State, Nigeria
[7] Univ Coll Hosp, Dept Internal Med, Ibadan, Oyo State, Nigeria
[8] Ahmadu Bello Univ, Dept Pharmacol & Therapeut, Zaria, Kaduna State, Nigeria
[9] Univ Ibadan, Fac Educ, Dept Guidance & Counseling, Ibadan, Oyo State, Nigeria