About the Authors

Wichai Termrungruanglert

Roles Conceptualization, Data curation, Methodology, Supervision, Validation, Writing – original draft, Writing – review & editing

wichaiterm@yahoo.com

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand

Nipon Khemapech

Roles Data curation, Writing – original draft, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand

Apichai Vasuratna

Roles Data curation, Writing – original draft, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand

Piyalamporn Havanond

Roles Data curation, Validation, Writing – original draft, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand

Preyanuch Deebukkham

Roles Data curation, Validation, Writing – review & editing

Affiliation MSD (Thailand) Ltd., Bangkok, Thailand

Amit Sharad Kulkarni

Roles Formal analysis, Investigation, Software

Affiliation Center for Observational and Real World Evidence, Merck & Co., Inc., Kenilworth, New Jersey, United States of America

Andrew Pavelyev

Roles Formal analysis, Investigation, Software

Affiliation Center for Observational and Real World Evidence, Merck & Co., Inc., Kenilworth, New Jersey, United States of America

Competing Interests

The authors have read the journal’s policy and the authors of this manuscript have the following competing interests: WT (corresponding author), NK, AV, and PH declare that they have no competing interests. PD was employee of MSD (Thailand) Ltd., during the study initiation and manuscript preparation. ASK and AP are employees of Merck & Co., Inc. These does not alter our adherence to PLOS ONE policies on sharing data and materials.