Text and Data Mining valid from 2020-01-13
Received: 6 June 2018
Accepted: 6 January 2020
First Online: 13 January 2020
Ethics approval and consent to participate
: The proposal was approved by Ethical Review Committee of the University of Dodoma. A letter of permission was obtained from the Rukwa Regional Administration. Both written and verbal consent were sought from study participants after explaining the study objectives and procedures. Their right to refuse to participate in the study at any time was assured.
: The manuscript does not have individual-specific data.
: The authors declare that they have no competing interests.