Tanvatanagul W, Chooprateep S, Meeead S, Tanvatanagul V. Statistical Analysis of Mental Health in the Elderly in Chiang Mai Province, Thailand. Thail. Stat. [internet]. 2015 May 28 [cited 2026 Sep. 29];6(1):101-25. available from: https://ph02.tci-thaijo.org/index.php/thaistat/article/view/34348