Suwanwanich M. “Relative Risk Factors of Abnormal Endometrial Pathologies in Patients With Abnormal Uterine Bleeding”. Journal of The Department of Medical Services, vol. 44, no. 5, Oct. 2019, pp. 103-7, https://he02.tci-thaijo.org/index.php/JDMS/article/view/246655.