Diagnostic Accuracy of Transvaginal Ultrasonography and Serum β-hCG in the Diagnosis of Ectopic Pregnancy: A Systematic Review. IPSSJ [Internet]. 2026 Sep. 20 [cited 2026 Oct. 21];3(09 September):524-31. Available from: https://ipssj.com/index.php/ojs/article/view/2038