Any age |
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Any gender |
The localized and gneralized types of vitiligo with exception of segmental one (with involvement <20% of body surface) |
Vitiligo duration less than 5 years |
Negative history of systemic disorder |
No pregnancy |
Negative history of drug administration |
Normal or low serum zinc |
Normal other laboratory tests |
Taking no zinc during 4 weeks prior to referring |