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Article History

Received: 9 December 2022

Revised: 11 January 2023

Accepted: 27 January 2023

First Online: 31 January 2023

Declarations

:

: This study received ethical approval from institutional review boards of the Faculty of Spatial Sciences, University of Groningen in the Netherlands, the Ifakara Health Institute (IHI) in Tanzania and the National Tanzanian Medical Research co-coordinating committee of the National Institute for Medical Research (NIMR). All the methods in this study were performed in accordance with the relevant guidelines and regulations (Declaration of Helsinki). Prior to enrolment we explained the objectives and procedures of this study to the participants and obtained informed written consent from them.

: Not applicable.

: The author declares have no competing interests.