Dr. Seema, Dr. Kamna Tiwari, Dr. Ajay Pal Singh, Dr.Sanjay Rawat. ‘’STUDY THE ECG FINDINGS, ECHO FINDINGS AND HOLTER MONITORING FINDINGS IN COPD PATIENT’’. J Popl Ther Clin Pharmacol [Internet]. 2023 Jul. 16 [cited 2024 Jul. 26];30(7):517-28. Available from: https://jptcp.com/index.php/jptcp/article/view/2615