The safety experiment with chicken had not secondarypoisoning.
以家鸡进行安全性试验,无二次中毒现象。
2
Objective to understand the situation of secondary skin cancer of hyperkeratosis of skin spot 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。
3
Chronic poisoning: long-term exposure product can be caused by corneal opacities, secondary anemia, leukocytosis, neurasthenia syndrome, the workers place the skin dry, chapped, dermatitis.