Funding for this research was provided by:
Knut och Alice Wallenbergs Stiftelse
Norges Teknisk-Naturvitenskapelige Universitet
Text and Data Mining valid from 2018-11-09
Received: 23 August 2016
Accepted: 30 October 2018
First Online: 9 November 2018
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: This study did not require an ethics approval from the local ethics committee, which has been confirmed by Office of the Sierra Leone Ethics and Scientific Review Committee.
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