Napat Likkasittipan และ Budsaba Wiriyasirivaj. (2021) Effect of Lidocaine Gel for Pain Relief during Endometrial Sampling: A double-blinded randomized controlled trial. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>29</i>(5), 273-280.Napat Likkasittipan และ Budsaba Wiriyasirivaj. "Effect of Lidocaine Gel for Pain Relief during Endometrial Sampling: A double-blinded randomized controlled trial". Thai Journal of Obstetrics and Gynaecology 29 (2021):273-280.Napat Likkasittipan และ Budsaba Wiriyasirivaj. Effect of Lidocaine Gel for Pain Relief during Endometrial Sampling: A double-blinded randomized controlled trial. PIMDEE Co. Ltd.:ม.ป.ท. 2021.