Plengrudsamee N. Depression and psychosocial factors related to depression in the elderly in Thungyang subdistrict, Laplae district, Uttaradit province. PMJ [internet]. 2023 Dec. 25 [cited 2026 Sep. 23];3(3):271-86. available from: https://he03.tci-thaijo.org/index.php/PMJ/article/view/2919