N. Pariyanont, V. Kanavitoon, O. Tepthip, and P. Pajareeyapong, “Effectiveness and Adverse Drug Reactions of Hormonal Replacement Therapy in Menopausal Women, Health Promotion Center, Region 4 Ratchaburi”, Thai J Obstet Gynaecol, vol. 11, no. 1, pp. 35–41, Mar. 1999.