In a double-blind study 91 patients with acne vulgaris were treated either with oral zinc sulphate (0.4 g daily) or with a placebo. Forty-eight patients received zince treatment and 43 patients placebo. Significantly better results were demonstrated in favour of zince after 12 weeks.
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http://dx.doi.org/10.1111/j.1365-2133.1977.tb14277.x | DOI Listing |
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