| We included nine randomised controlled trials eight of which compared a lactam antibiotic with a lactam and aminoglycoside. |
| This was illustrated in a randomised trial of screening for cancer of the lung. |
| Following up the placebo arm of a randomised trial can be a good way of tracking the course of benign diseases. |
| Infants randomised to the dummy groups received a dummy on entry into the trial. |
| This evidence led to a multicentre randomised controlled trial in women with osteoporosis. |
| Most randomised trials allocate individual participants to different treatments. |
