Pongchitsiri S. Prevalence and Predicting Factors of Depression among Elderly in Primary Care Unit, Chachoengsao Province. J DMS [internet]. 2018 Oct. 1 [cited 2025 Mar. 26];43(5):81-6. available from: https://he02.tci-thaijo.org/index.php/JDMS/article/view/247780