Platt, N
Kwiatkowska, R M
Irving, H
Diabaté, A
Dabire, R
Wondji, C S
Article History
Received: 18 November 2014
Revised: 12 February 2015
Accepted: 11 March 2015
First Online: 22 April 2015
Competing interests
: The authors declare no conflict of interest.