Archana Sinha and Pratishtha Potdar. Estimation of Placental Thickness with Gestational age in Second &Third Trimester-An Ultrasonographic Study. NFMMR-V8 [Internet]. 2021 Aug. 9 [cited 2026 Aug. 8];:11-7. Available from: https://stm.bookpi.org/NFMMR-V8/article/view/3105