POH THEAN, C. A. .; AWANG , M. S. .; ATHAR, S. S. H. . Comparison between High Frequency and Low Frequency Portable Transcutaneous Electrical Nerve Stimulation in Patients with Knee Osteoarthritis: A prospective Randomized Study. IIUM Medical Journal Malaysia, [S. l.], v. 17, n. 1, 2018. DOI: 10.31436/imjm.v17i1.832. Disponível em: https://journals.iium.edu.my/kom/index.php/imjm/article/view/832. Acesso em: 8 dec. 2021.