Shrestha, Sanjay Bikram, et al. “Serum Bilirubin As a Potential Marker in Diagnosing the Severity of Acute Appendicitis: A Retrospective Study”. Journal of College of Medical Sciences-Nepal, vol. 21, no. 3, Sept. 2025, pp. 225-30, doi:10.3126/jcmsn.v21i3.82257.