1.
Suthisuntornwong C, Tangsiriwatthana T. Hot Patch Applied to the Lower Back for Pain Relief during the Active Phase of the First-stage Labor: A randomized controlled trial: . Thai J Obstet Gynaecol [internet]. 2022 Mar. 1 [cited 2026 Sep. 24];30(2):109-1. available from: https://he02.tci-thaijo.org/index.php/tjog/article/view/246122