•It occurs world-wide with an estimated prevalence of 1 in        30–50 000.  No data exists on prevalence in Nepal
•Case series of 19 patients has been published recently (Nepal Journal of Neuroscience, Volume 1, Number 2, 2004)
•Certain features of Wilson's disease (WD) in Asia have been found to be different from those in other continents.
•In many case series from india, this disease is noted to manifest at a younger age in Indian children. The average intake of copper in India ranges from 5.7-7.1 mg/day and is higher than the reported 0.34-1.1 mg/day in Western countries. The practice of cooking food in copper/copper alloy pots might be contributory.
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Demography