Funding for this research was provided by:
Fonds de Recherche du Québec - Santé
Canadian Institutes of Health Research (150470)
Quebec Population Health Research Network
Received: 14 September 2018
Accepted: 1 January 2019
First Online: 18 January 2019
Ethics approval and consent to participate
: This research received ethical approval from the Health Research and Development Committee in the Ministry of Health, the body responsible for ethical review in Botswana (HRDC 00724). This committee has judged the project to pose minimal risk to participants. This research has also received ethical approval from the McGill University Institutional Review Board (A02-M14-16B). All participants provided oral informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.