Two previous human studies did not find correlations between sleep parameters and subsequent conditioning. (jneurosci.org)
When they compared the dates of these outbreaks with tree ring data, they did not find a correlation with European climate patterns. (newscientist.com)
The researchers found a correlation between high blood pressure and higher salt intake, even in people who were eating a high amount of potassium and other nutrients. (sciencedaily.com)