Perveen, R. ., S. . Anwar, S. . Kainat, A. . Javed, and I. . Mahmood. “Barriers to Effective Pain Management in Postoperative Patients: Perspectives of Nurses in Pakistan”. Biological and Clinical Sciences Research Journal, vol. 6, no. 8, Aug. 2025, pp. 16-19, doi:10.54112/bcsrj.v6i8.1923.