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1·Three tests (neutralization, sedimentation and dissociation) were used for determining the secretion intensity of ABH blood substance in saliva in 135 persons with known blood groups.

本文采用中和试验，沉降反应和解离试验对135例已知血型人唾液中abh血型物质的分泌强度进行了检验，并将其分为强、中、弱三型。