Nahar, Salsa Bill, Sultana Ferdousi, Shamima Sultana, Kazi Saifuddin Bennoor, Mustafijur Rahman, Mohammad Abdus Shakur Khan, Samia Hassan, Maksuda Binte Mahmood, Sharkia Khanam Rosy, Nazneen Sultana, and Sheikh Manna Yasmin. “Impact of Vitamin D Supplementation on Heart Rate Variability in Vitamin D Deficient Asthma COPD Overlap Syndrome Patients: A Randomized Controlled Trial”. Journal of Bangladesh Society of Physiologist 15, no. 2 (December 23, 2020): 98–107. Accessed November 24, 2024. https://banglajol.info/index.php/JBSP/article/view/50925.