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The Egyptian National Research Center made many scientific analysis and research with astonishing results that the black sand contained many minerals and some radioactive materials which have a great effect in treating rheumatoid.
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Specialists due the speed recovery of their patients to the ultraviolet rays which are reflected from the mountains surrounding Isis Island and the water of the River Nile while burying parts of the body inside the sand and mud of the Nile, besides the dry climate of Aswan.
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