But so far, VX-950 has not achieved any sustained viral responses.

However, in a natural environment a sustained response is fairly unambiguous and must indicate upward movement.

To produce a sustained response, the stimulus must be moving across the receptive field.

A sustained response means that the patient remains free of hepatitis C virus 6 months after stopping therapy.

On average, physicians indicated that they would require a 60% sustained response before recommending therapy to their patients.

The injections led to a sustained immune response specific to the surface protein in seven of the nine recipients.

Yet until Sept. 11, the terrorists faced no sustained, systematic and global response.

Similarly to type 1, they produce sustained responses to a continued stimuli.

They have small receptive fields and produce sustained responses to static stimulation.

About 65% of persons on treatment achieve a sustained response.