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Old 08-10-2012, 01:49 PM
ANNagain ANNagain is offline
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Join Date: Nov 2011
Location: Boston
Posts: 1,105
10 yr Member
ANNagain ANNagain is offline
Senior Member
 
Join Date: Nov 2011
Location: Boston
Posts: 1,105
10 yr Member
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You have to have something (or a component of it) once, to make antibodies to it.

ANN
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"Thanks for this!" says:
SallyC (08-10-2012)