Astuti KEW, Murwati M, Fitriani N. The Effect of Endorphin Massage on Reducing The Intensity of Back Pain in Third Trimester Pregnant Women: A Systematic Review. J Matern Child Health [Internet]. 2022 Mar. 16 [cited 2024 Nov. 22];7(2):148-5. Available from: https://thejmch.com/index.php/thejmch/article/view/748