Rehan B, ul Haq MM, Wadwa RK. 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. PJHS-Lahore [Internet]. 2023 Nov. 30 [cited 2024 Dec. 4];4(11):71-6. Available from: https://mail.thejas.com.pk/index.php/pjhs/article/view/1165