Ashiq, Tayyaba, et al. “DETERMINATION OF DIAGNOSTIC ACCURACY OF BIOCHEMICAL PARAMETERS (CRP, LDH & FERRITIN) IN THE DIAGNOSIS OF COVID-19 IN SUSPECTED COVID CASES: Diagnostic Accuracy of Biochemical Parameters in COVID”. Pakistan Armed Forces Medical Journal, vol. 71, no. 5, Oct. 2021, pp. 1722-26, doi:10.51253/pafmj.v71i5.5749.