Kerdtawee, P., Wuttikonsammakit, P. and Chamnan, P. 2019. Efficacy of Intravenous Sedation, Paracervical Block and Paracervical Block with Lidocaine Spray on Pain Relief during Uterine Curettage in First Trimester Incomplete Abortion: Randomized clinical trial. Thai Journal of Obstetrics and Gynaecology. 27, 3 (Jul. 2019), 139–148. DOI:https://doi.org/10.14456/tjog.2019.18.