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The serum levels of /分-carotene and vitamin A in the maternal and fetal blood were measured by the author’s modified method based on Bessey’s original procedure, and the figures observed are as follows (1)The serum carotene level of the maternal blood (51 cases) is 29.5 ± 14.6 7/dl., ranging from 54.6 to 168.8 7/dl., while that of the fetal... |