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安全合理用血和血液制品的基石是吸收、选择和保持自愿、无报酬的献血员。保证杜绝安全供血中存在的问题：缺乏安全的献血员和有不安全的献血员存在。献血员可分为三种类型：第一种是卖血或职业献血员，有非常多的理由说明为什么这种献血员应该禁止。卖血者常常来自于社会最贫?
The cornerstone of the safe and rational use of blood and blood products is the absorption, selection and maintenance of voluntary, unpaid blood donors. Ensure that there are no problems with safe blood supply: the lack of safe blood donors and unsafe blood donors exist. Blood donors can be divided into three types: The first is selling blood or professional blood donors. There are many reasons why such blood donors should be banned. Blood donors often come from the poorest society?