1) A family study including the identification and transmission of the variant of time rh'' factor known as Eu is presented.

2) The need for caution in interpretation of unusual variations in reactions to standard sera, especially in Negroids is emphasized.

3) The value of special technics such as use of serum containing only a single antibody, anti-human globulin test, enzyme treated cells and elution methods for clarification of atypical findings is demonstrated.

Topics:
antibodies, atypical, enzymes, family studies, globulins, serum
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© 1955 by American Society of Hematology, Inc.
1955
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