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Three types of gamma-globulins, gamma(2), gamma(IA), and yim, are present in certain body fluids and secretions in proportions significantly different from those of normal human serum. A lthough ylA-globulin is present in only small amounts in serum, it represents a major fraction of the gamma globulin of tears, bile, saliva, colostrum, and fluid of the small intestine.
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Chodirker et al. (1963) studied this question.
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