Text and Data Mining valid from 2018-09-12
Received: 23 May 2018
Accepted: 21 August 2018
First Online: 12 September 2018
Ethics approval and consent to participate
: The National Research Ethics Committee of Benin approved the study (reference number 016 of July 16th, 2013). Householders and spray men gave their written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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