Dwiningtyas, A., I. B. N. Rai, K. Suryana, I. G. K. Sajinadiyasa, I. A. Jasminarti, N. W. Candrawati, and E. Arisanti. “Correlation Between C-Reactive Protein (CRP) and Lymphocyte Levels in the Acute Phase With Spirometry Test in Severe Coronavirus Disease 2019 (COVID-19) Survivors After Twelve Weeks”. International Journal of Health Sciences, vol. 6, no. S9, Sept. 2022, pp. 1355-72, doi:10.53730/ijhs.v6nS9.12742.