But they said longer studies with more patients were needed to see whether the treatment produced the expected clinical benefit.

This was the first scientific evidence of clinical benefit to emerge.

This time interval should take into account the expected clinical benefit that such a status may bring to the population under study.

But researchers say longer studies with more patients are needed to establish clinical benefits.

"This is the first study using scientific methods to show clinical benefits."

Companies are required to do further studies to verify the clinical benefits.

In other cases, there may be no clinical benefit to the patient.

Studies have demonstrated the clinical benefits of dialyzing 5 to 7 times a week, for 6 to 8 hours.

I hadn't met with him for his clinical benefit.

So these subsequent trials did not show a clinical benefit.