Tissue valves which may come from a pig, cow or human cadaver donor often need to be replaced.
CNN: Aortic valve regurgitation
It was not uncommon for one human being to push another into his path, or even to slay that human being and stretch the cadaver out on the ground as an offering.
NEWYORKER: Ziggurat
应用推荐
模块上移
模块下移
不移动