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Sparse fur hemizygous male mice are over 90% deficient in ornithine transcarbamylase and exhibit increased synthesis of orotic acid. Because our earlier studies have demonstrated that orotic acid is a liver tumor promoter in the rat, it was of interest to determine whether this genetic disorder also increases the risk of tumor promotion. The results(More)
PURPOSE Nutrients and immunological factors of breast milk are essential for newborn growth and the development of their immune system, but this secretion can contain organic and inorganic toxins such as barium. Colostrum contamination with barium is an important issue to investigate because this naturally occurring element is also associated with human(More)
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