This has been definitely demonstrated in many studies as well as in cumulative meta-analysis.
(Davis cites many studies, as well as his own clinical experience, that stimulant medication does improve academic performance in kids with an ADHD diagnosis.
However, the group reassures parents that many studies -- as well as simply the test of time -- have shown that healthy babies who sleep on their backs are able to turn their heads and protect their airways if they do happen to spit up.
An association between poor perceived health and depressive symptoms has been reported in many studies, as has an inverse association between social activity and depression.
In many studies, as well as ours, the learning curves appear to be smooth because each data point on the curve is assigned the average value from multiple experiments (e.g. 10-fold cross validation repeated 100 times).
The magnitude of this effect cannot be accurately determined from the studies reviewed above due to a lack of certainty in many studies, as well as varying measures that were targeted by the study designs.
Allelic variants of the VDR gene, recognized by ApaI (allele A/a C-A), BsmI (allele B/b G-A), FokI (allele F/f C-T), and TaqI (allele T/t T-C) restriction endonucleases, have been associated with bone mineral density (BMD) in many studies as well as with bone loss in elderly subjects.
First, NLR, which integrates the detrimental effects of neutrophilia (an indicator of inflammation) and lymphopenia (an indicator of physiologic stress), has emerged as a useful prognostic marker in many studies, as well as studies evaluating patients with idiopathic sudden sensorineural hearing loss [ 2, 3].
This year I reviewed as many studies as I could find that had been conducted since then.
There are as many studies as slumlords when it comes to our preference for higher immediate benefits.
Whenever possible, look for meta-analyses or systematic reviews that synthesize results from many studies, as they can provide more-credible evidence and sometimes suggest reasons that results differ.
