Prevalence and Correlates of HIV-Associated Neurocognitive Disorders (HAND) in Northwestern Nigeria oleh Ahmad M. Yakasai, Mustafa I. Gudaji, Hamza Muhammad, Aliyu Ibrahim, Lukman F. Owolabi, Daiyabu A. Ibrahim, Musa Babashani, Muhammad S. Mijinyawa, Musa M. Borodo, Abayomi S. Ogun, Abdulrazaq G. Habib