Saxena V, Batra J, Saxena S, Agarwal A. Study of serum electrolytes in COPD with or without CVD. Int. J. of Health Sci. [Internet]. 2022 Jun. 21 [cited 2026 Sep. 30];6(S4):3901-9. Available from: https://sciencescholar.us/journal/index.php/ijhs/article/view/9357