A STUDY TO INVESTIGATE THE ROLE OF PELVIC FLOOR MUSCLE IN CHRONIC NONRESPONSIVE BACK ACHE IN FEMALES. International Journal of Physiotherapy, [S. l.], v. 3, n. 1, p. 115–118, 2016. DOI: 10.15621/ijphy/2016/v3i1/88924. Disponível em: https://ijphy.com/index.php/journal/article/view/167. Acesso em: 23 apr. 2026.