Mishu, Masuma Pervin
Watt, Richard G.
Heilmann, Anja
Tsakos, Georgios https://orcid.org/0000-0002-5086-235X
Article History
Received: 19 August 2019
Accepted: 20 January 2021
First Online: 5 February 2021
Ethical approval
: All participant parents in the study gave written informed consent. Written permission was obtained from the hospital and school authority. Ethical approval was obtained from University College London Research Ethics Committee and National Research Ethics Committee of Bangladesh.
: Not applicable.
: The authors declare that they have no competing interests.