R. Jain, R. S. Mathur, and A. Sharma, “Correlation of 5-Repetition Sit-to-Stand Test with Borg Dyspnoea Scale and GOLD Spirometric Classification in Patients with COPD”, uapmjrdas, vol. 2, no. 02, pp. 1–4, Oct. 2025, doi: 10.70192/.