Lalita Songsathaporn และ Lunthaporn Puttanavijarn; Dennopporn Sudjai. (2021) Normative Values of Uterine Artery Doppler Pulsatility Index using Transvaginal Ultrasound in Women between 18-24+6 Weeks of Gestation at Rajavithi Hospital. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>29</i>(4), 227-235.Lalita Songsathaporn และ Lunthaporn Puttanavijarn; Dennopporn Sudjai. "Normative Values of Uterine Artery Doppler Pulsatility Index using Transvaginal Ultrasound in Women between 18-24+6 Weeks of Gestation at Rajavithi Hospital". Thai Journal of Obstetrics and Gynaecology 29 (2021):227-235.Lalita Songsathaporn และ Lunthaporn Puttanavijarn; Dennopporn Sudjai. Normative Values of Uterine Artery Doppler Pulsatility Index using Transvaginal Ultrasound in Women between 18-24+6 Weeks of Gestation at Rajavithi Hospital. PIMDEE Co. Ltd.:ม.ป.ท. 2021.