Received: 18 August 2020
Accepted: 8 August 2022
First Online: 6 September 2022
: This study was approved by the Mozambican National Bioethics Committee and the Institutional Review Boards at the Hospital Clinic of Barcelona (Spain) and the Manhiça Health Research Centre. It was also reviewed according to Centers for Disease Control and Prevention (CDC) human research protection procedures and was determined to be research; however, CDC was not engaged directly with research participants. The purpose of the main study was explained to participants, and written informed consent was obtained.
: Not applicable.
: The authors declare that they have no competing interests.