Funding for this research was provided by:
Department of Obstetrics and Gynecology, University of Malaya (UMSCOG/RF00062017/01)
Received: 28 September 2020
Accepted: 8 February 2021
First Online: 15 February 2021
Ethics approval and consent to participate
: All procedures performed in the studies involving human participants were in accordance with the ethical standards of Medical Ethics Committee of University Malaya Medical Centre (Date of approval: April 5 2017, Reference number: 20161019-4384) and registered in ISRCTN registry on May 4 2017 (trial identifier: ExternalRef removed) prior to enrolment of trial participants. The study was conducted in compliance with the Declaration of Helsinki. Informed written consent was obtained from all trial participants. This article does not contain any studies with animals performed by any of the authors.
: Not applicable.
: The authors declare that they have no competing interests.