Sunsaneevithayakul, P., Siwadune, T., Boriboonhirunsarn, D., Titapant, V. and Sutanthavibul, A. 2000. Reference Centile Charts for Fetal Umbilical Artery Doppler Velocimetry Waveform of Thai Fetuses. Thai Journal of Obstetrics and Gynaecology. 12, 3 (Jul. 2000), 201–211.