Efficacy demands efficiency.

With the utmost efficacy.

It compromises doctor- patient efficacy.

Well, I can't speak to its efficacy.

Efficacy and efficiency of possible control measures

They teach you "efficacy" at Harvard Medical?

The synthetic serum is fully efficacious.

Theory and efficacy of economic sanctions

It will demonstrate the efficacy of weaponization.

Efficacy of the anti-corruption initiative