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TraQ Program of the PBCO

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 Quiz 

Answer (Question 1)
 What percentage of group A subgroups have anti-A1 present?

The presence of anti-A1 varies by subgroup:

 

Subgroup anti-A1 present
A2 1-8%
A2B 22-35%
A3B a few
AmB not usually
AxB most

 

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