The tendency of the times is toward nervous and mental disorder.

The fact is that anyone is liable to mental disorder; but mental disorder is not insanity.

Can it be that the letters are the outcome of a mental disorder?

Mr. Duffy abhorred anything which betokened physical or mental disorder.

In the mental disorder that followed, he was spotted and killed easily.

There is not the least trace of mental disorder in the previous family history.

Images taken for real things are common in some forms of mental disorder.

In a short time, however, distinct symptoms of mental disorder began to manifest themselves.

In all the cases cited by Dr. Keith none had been afflicted with any mental disorder.

Cases showing prevalence of this mental disorder are to be found everywhere.