TY - JOUR AU - Lo S. AU - Cheing G. AU - Tsui A. AU - Hui-Chan C. BT - Journal of Rehabilitation Medicine LA - eng LB - biostatisticsjournal PY - 2003 SP - 62 EP - 8 ST - J. Rehabil. Med. T2 - Journal of Rehabilitation Medicine TI - Optimal stimulation duration of tens in the management of osteoarthritic knee pain VL - 35 ER -