@article{facci_nowotny_tormem_trevisani_2011,  title={Effects of transcutaneous electrical nerve stimulation (TENS) and interferential currents (IFC) in patients with nonspecific chronic low back pain: randomized clinical trial},  volume={129},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31802011000400003},  DOI={10.1590/S1516-31802011000400003},  number={4},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Facci, Ligia Maria and Nowotny, Jean Paulus and Tormem, Fabio and Trevisani, Virgínia Fernandes Moça},  year={2011},  pages={206–216} }