Assertion: semen's protein | /r/CapableOf | cross the blood-testis barrier
Facets:
Source sentences:
text: The prevalence of Creutzfeldt–Jakob disease for donors is at most one in a million, and if the donor was a carrier, the infectious proteins would still have to cross the blood-testis barrier to make transmission possible.
text: If prevalence was the case, the infectious proteins would then have to cross the blood-testis barrier to make transmission possible.