Correlation of third-trimester Doppler abnormalities and amniotic fluid volume with preterm birth in pregnant women of Southern Bihar. SJHR-Africa [Internet]. 2024 Nov. 30 [cited 2026 Jul. 25];5(11):10. Available from: https://www.sjhrafrica.org.sjhresearchafrica.org/index.php/public-html/article/view/2243