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1974至1976年间,国立儿童保健和人类发展研究所对大量新生儿随机分为光疗组与对照组对光疗进行研究,本文报道这次研究中换血的频率及其效果。既往关于换血的发病率及死亡率的文献都是以1970年前的经验为基础的。
Between 1974 and 1976, a large number of newborns were randomly divided into phototherapy groups and control groups for phototherapy by the National Institute of Child Health and Human Development. This article reports on the frequency of transfusions and their effects in this study. Previous literature on the morbidity and mortality of blood transfusions was based on pre-1970 experience.