translation.en: Heparin -- a blood thinner, a pharmaceutical product -- starts out in artisanal workshops like this in China, because the active ingredient comes from pigs' intestines.
translation.zh: 肝磷脂--血液稀释剂， 一种药品-- 来自中国 类似于手工作坊， 因为活性成分 来自猪的肠毒素。