Respiratory manifestations of long COVID syndrome and pulmonary function abnormalities at 3-months after COVID-19 infection: A single center experience from Sri Lanka
C. Undugodage,
N. Perera,
H.D. K. De Silva,
F. A. H. Deen,
R. A. D. Indrakantha,
R. A. Y. V. Ranatunga,
W. T. P. Weveldeniya,
W. A. D. E. Wicramasinghe,
G. B. L. Samarasekera