Sari KP, Supriadi, Era DP. The Effect of Providing Deep Breathing Relaxation Techniques on Anxiety Levels in the Elderly at the Elderly Posyandu in South Sangatta Village. FJST [Internet]. 2023 Oct. 3 [cited 2026 May 14];2(9):2539-50. Available from: https://journal.formosapublisher.org/index.php/fjst/article/view/5942