[1] Univ Ibadan, Dept Publ Law, Ibadan, Nigeria
[2] Univ Ibadan, Dept Commun & Language Arts, Ibadan, Nigeria
[3] Univ Ibadan, Dept Epidemiol & Med Stat, Ibadan, Nigeria
[4] Univ Ilorin, Neurol Unit, Ilorin, Nigeria
[5] Univ Ghana, Med Sch, Accra, Ghana
[6] Kwame Nkrumah Univ Sci & Technol, Neurol Unit, Kumasi, Ghana
[7] Bayero Univ, Neurol Unit, Kano, Nigeria
[8] Univ Ilorin, Dept Med, Neurol Unit, Ilorin, Nigeria
[9] Ahmadu Bello Univ, Neurol Unit, Teaching Hosp, Zaria, Nigeria
[10] Univ Ibadan, Neurosci & Ageing Res Unit, Ibadan, Nigeria
[11] Kwame Nkrumah Univ Sci & Technol, Sch Publ Hlth, Kumasi, Ghana
[12] Med Univ South Carolina, Coll Nursing, Columbia, SC USA
[13] Univ Ibadan, Dept Sociol, Ibadan, Nigeria
[14] Newcastle Univ, Neurovasc Res Grp, Newcastle Upon Tyne, Tyne & Wear, England
[15] Univ Ibadan, Dept Med, Ibadan, Nigeria
[16] Univ Calif San Francisco, Weill Inst Neurosci, San Francisco, CA 94143 USA
[17] Univ Ibadan, Dept Hlth Promot & Educ, Ibadan, Nigeria