Here are some other useful links about nickel food allergies and topical nickel allergies. More information about nickel allergies, systemic nickel allergy syndrome (SNAS) or nickel food allergies have been published in the last several years.
USGS GeoChemical & Mineralogical Map for Soils of the Conterminous United States (Nickel shown on figures 77-79 / pages 161-166).
Other Related Links & Useful Information
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