3 Department of Obstetrics and Gynaecology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. pisake@kku.ac.th.
4 Department of Biostatistics and Demography, Faculty of Public Health, Khon Kaen University, Khon Kaen 40002, Thailand. laopaiboonmalinee@yahoo.co.uk.
5 School of Medicine, Taylor's University Malaysia, Selangor 47500, Malaysia. lainm123@yahoo.co.uk.
6 School of Pharmacy, Monash University Malaysia, Selangor 47500, Malaysia. nathorn.chaiyakunapruk@monash.edu.
7 Center of Pharmaceutical Outcomes Research (CPOR), Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand. nathorn.chaiyakunapruk@monash.edu.
8 School of Pharmacy, University of Wisconsin, Madison, WI 53705-2222, USA. nathorn.chaiyakunapruk@monash.edu.
9 School of Population Health, University of Queensland, Brisbane, Herston 4006, Australia. nathorn.chaiyakunapruk@monash.edu.