Acknowledgments
We want to thank our advisors, including Professor Dr. Prasit Watanapa, Ph.D., Associate Professor Dr. Watana Watanapa, Ph.D., Associate Professor Dr. Suebwong Chuthapisith, Ph.D., and Ms.Songsri Keawtanom for their kind guidance throughout our journey. We also want to thank Ms. Julaporn Pooliam from the Clinical Epidemiology Unit, Faculty of Medicine Siriraj Hospital, Mahidol University for her assistance with sample size calculation and data analysis. Lastly, we thank the Siriraj Institute of Clinical Research (SiCRES) at the Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok for their assistance with double-blinding and conducting the study visits.