Studies of the number of erythrocytes and of the quantity of hemoglobin in the blood of normal adults have been numerous during the past two decades. Fewer studies on normal values for these elements in infants and children have been reported, and still less work has been accomplished on the normal values for other blood elements. Previous studies of the blood values of specific age groups have been made as parts of extensive work on blood values for the period of infancy and childhood. In many instances only a small number of children have been studied, and in practically all the studies only a few of the blood elements have been investigated. To a great extent the blood values ascribed to early childhood have been so ascribed by inference from the more thorough studies of the values for the newborn and for infants. It is the purpose of this paper
HAMRE CJ, WONG KKL. HEMATOLOGIC VALUES FOR NORMAL CHILDREN THREE, FOUR AND FIVE YEARS OF AGE LIVING IN HAWAII. Am J Dis Child. 1940;60(1):22–35. doi:10.1001/archpedi.1940.02000010031003
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