Rehan, B., ul Haq, M. M., & Wadwa, R. K. (2023). Diagnostic Accuracy of Harbinger Score by Comparing It with Glasgow Blatchford (GBS) for Prediction of Early Endoscopic Intervention Need in Patients with Upper Gastrointestinal Bleed (UGIB): Diagnostic Accuracy of Harbinger Score. Pakistan Journal of Health Sciences, 4(11), 71–76. https://doi.org/10.54393/pjhs.v4i11.1165