Salvador de Melo, A. L., Cruz Gomes, E. L., Oliveira Ximenes, V., & Nepomuceno Montenegro, E. J. (2017). The effects of different TENS frequencies applied to LU7 acupoint on cold-induced pain test. Fisioterapia Em Movimento (Physical Therapy in Movement), 27(4). https://doi.org/10.1590/0103-5150.027.004.AO01