Text and Data Mining valid from 2020-03-30
Received: 27 August 2019
Accepted: 18 February 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: The research proposal was approved by the Helsinki Committee at BUMCA. All PW who participated in this study provided written informed consent after the research protocols were explained in detail.
: The authors declare that they have no competing interests.