@article{19746,
  author = {Lo S. and Cheing G. and Tsui A. and Hui-Chan C.},
  title = {Optimal stimulation duration of tens in the management of osteoarthritic knee pain},
  year = {2003},
  journal = {Journal of Rehabilitation Medicine},
  volume = {35},
  pages = {62-8},
  language = {eng},
}