"Nature" sub -magazine: scientists make pig skin into corneal membranes, so that the blind people can regain their light
A cornea made of pork skin collagen allows 14 blind people to regain light.Written...
Health food safety, criminal responsibility and responsibility chase together
Make fake rapeseed oil and sell it to the left -behind elderlyThe two conspired to blend rapeseed oil and sell them to left -behind old people in remote rural areas. On July 13, a public prosecution