The Duke study with child cerebral palsy patients is a clinical test.

VOA: special.2011.02.01

A recent study showed that RTS,S reduced clinical cases of malaria by fifty-three percent over an eight month follow-up period.

VOA: special.2010.04.20

In the nineteen seventies, a supervisor asked her if she would like to do clinical research about pain.

VOA: special.2010.05.04

So when you put these observational studies together with a 'gold standard' clinical trial, the findings are overwhelming."

VOA: standard.2010.07.21

Dr.Nissen's report was based on 42 clinical trials that showed a connection between Avandia and heart problems.

VOA: standard.2010.03.02

Hope Ferdowsian of the Physicians Committee says "For example,in HIV research, we've learned a lot from human epidemiological studies and ethically conducted clinical trials."

VOA: standard.2010.02.16