If this is inconvenient, you may phone 03 5427 1999, within the hours of 10am to 2pm, Monday to Friday
Professor Mark I Johnson of Leads University; "Transcutaneous Electrical Nerve Stimulation"; Oxford University Press; 2014
Robertson, Ward, et al: “Electrotherapy Explained - Principles and Practice”; Butterworth Heinemann for Elsevier Health Services; 2006.
