方法：用正反定型法进行ABO血型鉴定。

Methods We conducted ABO blood type appraisal in the way of reciprocal stereotypy.

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方法：用临床常规的正反定型法检测abo血型，然后调查家族遗传史，胎次和出生月份，并与正常人进行比较。

Method: Using positive negative blood grouping to detect ABO blood group, and investigating family heredity, birth order, birth month, compared with normal subjects.

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