Wulandari, N. P. D., & Lestari, N. K. N. (2026). The Effect of Slow Deep Breathing Combined with Classical Music on Anxiety in Elderly Patients with Diabetes Mellitus: A Gerontological Nursing Case Study. Bali Medical and Wellness Journal, 3(1). https://doi.org/10.71341/bmwj.v3i1.54