The external factor like chemical agent, the cosmetics, the zootoxin, the fish and shrimp, the pollen, the dust, the solarization, scratch with the finger grasp and so on.
MSF says its staff in Aleppo province have treated four members of the same family who appeared to have been exposed to a chemical agent attack last Friday.
France has released an intelligence report saying that the Syrian government launched last month’s attack on a Damascus suburb with a massive use of chemical agents.
Scientists first posed this question in the mid-1990s, after researchers came upon a chemical agent that in rodents seemed to reproduce many of caloric restriction's benefits.
But it suggests that those were almost efforts just to spread fear whereas this attack on August 21st, it says, was at a level of sophistication that could only belong to the regime and was a massive use of chemical agents.