1.   A more recent trial in osteoarthritis showed no effect from Rhus toxicodendron when compared with placebo.

2.   Clinical trials have shown nicotine replacement therapy is the only treatment which can effectively treat tobacco dependence.

3.   Clinical trials show that some patients with breast cancer do better if they take the drug for five years after surgery.

4.   However, trials have shown that the lowering of emissions is only achieved when a car is cruising.

5.   The plastic membrane is treated to prevent this, and animal trials have shown no increased risk of clotting.

6.   The recently published Medical Research Council trial showed a reduction in strokes but no significant reduction in coronary events.

7.   Early trials have shown that the treatment has some serious side effects.

8.   Randomised controlled trials have shown similar results.

9.   The second trial showed no significant response.

10.   The trial showed no difference in coronary artery patency between the continued heparin and aspirin plus dipyridamole groups.