It has been found that an anti-H agglutinin, prepared by simple saline extraction of seeds of Ulex europeus, is suitable for the routine separation of individuals into secretors and non-secretors, merely by testing the ability of the undiluted saliva of the subjects to inhibit the agglutination of group O erythrocytes by the undiluted Ulex extract.

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© 1954 by American Society of Hematology, Inc.
1954
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