“Diagnostic Accuracy of Transvaginal Ultrasonography and Serum β-hCG in the Diagnosis of Ectopic Pregnancy: A Systematic Review” (2026) Integrative Perspectives of Social and Science Journal, 3(09 September), pp. 524–531. Available at: https://ipssj.com/index.php/ojs/article/view/2038 (Accessed: 21 October 2026).