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Published online by Cambridge University Press: 08 February 2018
We have previously investigated the blood-group distribution in a series of normal persons and mental patients and shown that there is no significant difference between the two groups (Thomas and Hewitt, 1939). As an ancillary procedure in the investigation of any possible differences in the serological make-up of persons suffering from mental disease, we have determined the iso-agglutinin titres in a similar series of normal and mental patients. On prima facie grounds no difference is to be expected, and in the result, no difference was found.
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