Ametefe, M K
Bankah, P E
Yankey, K P
Akoto, H
Janney, D
Dakurah, T K
Article History
Received: 9 September 2015
Revised: 24 January 2016
Accepted: 28 March 2016
First Online: 3 May 2016
Competing interests
: The authors declare no conflict of interest.