Nigeria
van Walbeek, C.P., Adeniran, C., Augustine, I. 2021
Onoh, I., Owopetu, O., Olorukooba, A. et al. 2021
Udokanma, E.E, Ogamba, I., Ilo, C. 2021
Akanonu, P.C., Ishaku, J., Onyekwena, C. 2019
Azomahou, T., Baldé, R., Diagne, A. et al. 2019
Azomahou, T., Baidé, R., Diagne, A. et al. 2019
Sreeramareddy, C.T., Harper, S., Ernstsen, L. 2017
Uguru, N.P., Mbachu, C., Ibe, O.P. et al. 2015
Centers for Disease Control and Prevention 2012
Centers for Disease Control and Prevention 2012
Centers for Disease Control and Prevention 2008