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Article History

Received: 6 July 2021

Accepted: 7 December 2021

First Online: 29 December 2021

Declarations

:

: Ethical clearance was given for the evaluation of P4P by the Institutional Review Board of the Ifakara Health Institute (approval number: 1BI1IRB/38) and the Ethics Review Board of the London School of Hygiene & Tropical Medicine. Study participants provided written consent to participate in the study. All study participants were given an information sheet explaining the project and the voluntary nature of participation. Informed consent was obtained from all participants and/or their legal guardian(s), and were given a written consent form to sign before proceeding with an interview. The information sheet and consent form were both approved by the ethics committees prior to the start of the research. In addition, all research methods were performed in accordance with the relevant guidelines and regulations.

: Not applicable.

: The authors have no competing interests to declare.