Funding for this research was provided by:
Swedish international agency for development
Washington university in st Louis
Received: 6 August 2020
Accepted: 9 July 2021
First Online: 21 August 2021
: The present study was approved by the Human Research Protection Office of Washington University in St Louis (IRB ID #:201206117) and by the Institutional Review Board of the Ministry of Public Health of Afghanistan. All human studies have been approved by the appropriate ethics committee and have therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: Not applicable.
: The authors declare that they have no competing interests.