[1] Bayero Univ, Kano Aminu Kano Teaching Hosp, Coll Hlth Sci, Dept Child Dent Hlth,Fac Dent, Kano, Kano State, Nigeria
[2] Vanderbilt Univ, Med Ctr, Dept Hlth Policy, Nashville, TN USA
[3] Vanderbilt Univ, Med Ctr, Vanderbilt Inst Global Hlth, Nashville, TN USA
[4] Obafemi Awolowo Univ, Dept Child Dent Hlth, Ife, Osun State, Nigeria
[5] Rutgers Sch Dent Med, Dept Oral Biol, Newark, NJ USA
[6] Harvard Sch Dent Med, Dept Oral Hlth Policy & Epidemiol, Boston, MA USA
[7] Bayero Univ, Kano Aminu Kano Teaching Hosp, Dept Med, Kano, Kano State, Nigeria
[8] Univ Ibadan, Univ Coll Hosp, Dept Child Oral Hlth, Ibadan, Oyo State, Nigeria