Aupongkaroon, Pinya, Chinnawat Srinil, Maleechat Sripipattanakul, and Thumwadee Tangsiriwatthana. 2019. “Comparison of Lidocaine Spray in Conjunction with Intrauterine Lidocaine versus Paracervical Block for Pain Relief in Fractional and Curettage: A randomized controlled trial”. Thai Journal of Obstetrics and Gynaecology 27 (4). Bangkok, Thailand:180-86. https://doi.org/10.14456/tjog.2019.23.