Funding for this research was provided by:
Deutsche Gesellschaft für Internationale Zusammenarbeit (GR-01147)
Received: 17 March 2020
Accepted: 22 September 2020
First Online: 29 September 2020
Ethics approval and consent to participate
: This study received ethical approval from the Ethical Review Committee (PR-13100) of icddr,b in Dhaka, Bangladesh. Permission was sought from the appropriate authority prior to facility census and survey such as officials at the Ministry of Health or Local Government for public facilities and relevant administrative authority for private facilities (for-profit and not-for-profit).
: Not applicable.
: The authors declare that they have no competing interests.