If these guidelines are adopted by a majority of cardiovascular centers in the world , we can decrease the amount of blood transfusions , blood usage and cost and blood shortages would be less frequent and not occur to such a degree 如果这些指南被世界上大多数的心血管中心采用,我们就可以减少输血量、血液的使用和支出,血液短缺的现象会减少,不会再如此频繁的发生。 ”