Assertion: antibody | /r/HasAspect | better efficacy
Facets:
value: alternatively
type: DEGREE
Source sentences:
text: Alternatively, antibodies targeting different epitopes away from the ligand-binding sites may have better efficacy as well as safety profiles if they are IgG4, which have better binding affinity to FcγRIIB than IgG2, which only binds to FcγRIIA .