Objective to understand the situation of secondary skin cancer of hyperkeratosis of skinspot caused by coal burning type of arsenic poisoning.
目的了解燃煤型砷中毒皮肤角化点继发皮肤癌变的情况。
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Scientists experimenting on a batch of them in Hanover notice that after a limb has been amputated a layer of skin cells forms from the cells at the spot of the incision.