Sentence examples for efficacy is unexplained from inspiring English sources

The basis for this difference in efficacy is unexplained.

Her presence is unexplained.

The mechanism of this effect is unexplained.

There is unexplained tension between the men.

It is unexplained by the evidence.

The soldiers' purpose there is unexplained.

That conclusion is unexplained, and seems to us inexplicable.

Reasons for the discrepancy between boys and girls is unexplained.

Quite what has happened to the other letters is unexplained.

It is unexplained cut-offs in friendship.

All this is unexplained by the DSM.