Techatraisak, Kitirat, and Kittiyaporn Wattayanon. 2017. “The Correlation between Serum Estradiol Level and Body Mass Index in Postmenopausal Women: A cross-sectional study at the Menopause Clinic, Siriraj Hospital”. Thai Journal of Obstetrics and Gynaecology 25 (2). Bangkok, Thailand:111-18. https://doi.org/10.14456/tjog.2017.17.