Adyan Donastin, Danny Irawan, Effendy, Rifky Dwi Aditya Iryawan, Nuzlan Nuari, Betta Mega Oktaviana, Devy Yahya, and Akbar Reza Muhammad. 2026. “The Effect of Vitamin-D Supplementation on HDAC2 Levels in Stable COPD Patients ”. Journal of Health Sciences 19 (03):305-12. https://doi.org/10.33086/jhs.v19i03.7169.