其实，从美国对药品的研究到大批量生产的环节， 珍重生命，可见一斑（人命关天啊）：
Investigational new drug application
Informed consent
US FDA drug approval process
Preclinical investigational drug studies
Four clinical phases of investigational drug studies
…….
Expedited drug approval process；
算一算， 需要多少年啊？
选择“Disable on www.wenxuecity.com”
选择“don't run on pages on this domain”
