Patch tests with the GEIDC standard series of allergens, and with 8 washers made of copper, nickel, nickel-palladium, palladium, brass, bronze, gold and iron, were carried out in 964 consecutive patients who complained of intolerance to metals and in 200 controls who did not. All subjects were also questioned as to personal and family history of atopy, occupational contact and intolerance to gold. The results provide support for the substitution of nickel in imitation jewelry with metals such as palladium or bronze.
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Romaguera et al. (1988) studied this question.
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