A procedure of fractioning gastric cancer and non-cancerous gastric mucosa is described. 2. Two kinds of group A mucopolysaccharide and two kinds of group inactive mucopolysaccharide have been isolated in a pure state from a cancer material (group A), and one kind each of the corresponding group active mucopolysaccharides and group inactive mucopolysaccharides from a non-cancerous group B mucosa material.
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Masamune et al. (1958) studied this question.