Nguyen, T. H. T., Vu, V. T., & Nguyen, V. Q. H. (2025). Prevention of preterm birth among singleton pregnant women with an obtuse uterocervical angle: a quasi-experimental study on the value of cervical pessary combined with progesterone. Tạp Chí Y Dược Huế, 15(4), 139–147. https://doi.org/10.34071/jmp.2025.4.18