Jalal Khan, Zahoor Ahmed Shah, Asma Hassan, Azal Jodat, Bushra Adeel, Rahat Rahman. “Association of Serum IL-6 and CRP Levels With Disease Severity in Acute Exacerbation of COPD”. International Journal of Pharmacy Research & Technology (IJPRT), vol. 15, no. 2, July 2025, pp. 513-9, https://www.ijprt.org/index.php/pub/article/view/737.