Camara, A
Baldé, N M
Diakité, M
Sylla, D
Baldé, E H
Kengne, A P
Baldé, M D
Article History
Received: 26 November 2014
Revised: 23 January 2015
Accepted: 19 February 2015
First Online: 27 August 2015
Competing interests
: The authors declare no conflict of interest.