Good hygiene may be to blame for soaring AD in the West accordin

来源: 十具 于 2019-02-11 20:56:51 [] [旧帖] [给我悄悄话] 阅读数 : (272 bytes)
回答: 对老年痴呆比较悲观 由 dudaan 于 2019-02-10 12:01:54

Lack of exposure to germs, viruses and parasites harms the immune system - to rising rates of AD in richer nations.  不懂就是不懂，好吧

请您先登陆，再发跟帖！