Funding for this research was provided by:
ministry of finance education fund management institution (KET-1467/LPDP.3/2018)
Received: 20 August 2021
Accepted: 22 December 2021
First Online: 13 January 2022
: The study was submitted to and approved by the ethics committee of the Medical and Health Research Ethics Committee of the Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia with Ref. No.: KE / FK / 0564 / EC / 2019.
: Not applicable.
: The authors declare that they have no competing interests.