Mollika, R., Begum, S., Hoque, M. H., Afreen, K. N., Sharmin, E., & Ahmed, S. F. (2020). FVC, FEV1, FEV1/FVC % and their Relationship with EF% in Patients with Chronic Heart Failure. University Heart Journal, 16(2), 59–64. https://doi.org/10.3329/uhj.v16i2.49648