Most US donors are Caucasian, amongst whom 45% of people are blood group o.
大多数美国供血者是高加索人，其中的45%是O型血。
Objective To develop a procedure for batch preparation of universal red blood cells converted from group B to group O and provide universal red blood cells for clinic.
目的建立B→O血型转换红细胞（通用型红细胞）批量制备工艺，为临床提供通用型红细胞制品。
Type O is the most common blood group, but stocks constantly run low because it is used in all emergency situations where there is no time to determine the patient's own group.
型血是最常见的血型，但储存量总是很少，原因是在所有紧急事件中当没有时间鉴定病人的血型时总是使用O型血。
Brennan's body changed blood group from o negative to o positive when she became ill while on drugs to avoid rejection of the organ by her body's immune system.
布伦南生病期间需服药来避免身体免疫系统对移植器官的排斥，其间她的O型血从阴性转为阳性。
In practice, the division of group o blood into high and low titer, on the basis of dilution of 1:200 to 1:256, proved perfectly safe.
在实践中，基于稀释度在1：20 0到1：25 6的范围内，O型血组划分为高，低滴度，这是证明是非常安全的。
A particularly striking observation was that in patients not in group o, massive transfusions of o blood resulted in the virtual replacement of the recipient's cells by cells of the o group.
一项特别的引人注目的观察是，在非o型血病人中，大量的输o型血会导致一系列的O型血细胞对病人细胞虚拟的替代。
A particularly striking observation was that in patients not in group o, massive transfusions of o blood resulted in the virtual replacement of the recipient's cells by cells of the o group.
一项特别的引人注目的观察是，在非o型血病人中，大量的输o型血会导致一系列的O型血细胞对病人细胞虚拟的替代。
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