Khalid, Muhammad Umair, et al. “Comparison of the Role of High Neutrophil to Lymphocyte Ratio With Leukocytosis in Diagnosing Acute Cholecystitis”. Pakistan Armed Forces Medical Journal, vol. 73, no. 6, Dec. 2023, pp. 1737-40, https://doi.org/10.51253/pafmj.v73i6.8895.