Haseli 1 A, Chenari 2 Z, Nami 2 M, Jahdi 3 F, Neisani Samani 4 L, Haghani 5 H. The Effect of Breathing Techniques on Enhancing the Effect of Massage in Reducing the Pain in the Second Stage of Labour: A Parallel Randomized Clinical Trial. SJMS. 2019;4(2). doi:10.22100/ijhs.v4i2.439