There are also many articles on how to do meta-analysis.

To study this relationship, he used the meta-analysis research method.

It has been recognized as the first meta-analysis in the history of science.

On the other hand if this number is large, the results of the meta-analysis are likely to be valid.

One plot is shown in a 1985 book about meta-analysis.

A meta-analysis of the relationship between human capital and firm performance.

The most recent meta-analysis (2006) failed however to find a significant effect.

A 2010 meta-analysis found that it is no better than placebo.

Its data indicated a 31 percent increased risk, based on a similar meta-analysis.

Obviously, if this number were small, then the results of the meta-analysis are less credible.

However, no systematic review with or without meta-analysis has been conducted.

Not everyone was persuaded that his methods, which are called meta-analysis, were sound.

If you limit the meta-analysis to a very restricted population it will probably provide little new information.

However, in a meta-analysis the correlation was found to be considerably lower.

The results of a meta-analysis are often shown in a forest plot.

According to a 2005 meta-analysis, most studies favor pacifier use.

Their meta-analysis covered studies into a highly mixed group of conditions.

A similar conclusion was reached in an updated 2008 meta-analysis.

The second meta-analysis identified 17 trials that included 4,920 patients.

The area of each square is proportional to the study's weight in the meta-analysis.

However, a meta-analysis found no correlation between headaches and disease activity.

A 2008 meta-analysis also found a relationship between teamwork and team effectiveness.

Not until the 1980's did meta-analysis begin to gain acceptance in medicine.

The meta-analysis also found that all drugs lowered the blood pressure by the same amount.

A recent meta-analysis finds that democracy has no direct effect on economic growth.