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2. Country listing www.odci.gov/cia/publications/factbook/country.html.
3. AATE document Empowering older and disabled people in the EU, 3 March 1997, www.fernuni-hagen.de/FTB/aaate/position.html.
4. www.medtronic.com/intl/kinetra2.html, also www.medtronic.com/neuro/ncond/tremor.html.
5. Stimulation of the ventral intermediate thalamic nucleus in tremor dominated Parkinson’s disease and essential tremor;Alesch;Acta Neurochir. (Wien),1995