The primary motivation for doing so has been to identify the common aspects and core constructs that might form the basis of a meta-framework, thereby adding value to both discourses.
On the basis of a meta-analysis of imaging studies on syntax, it is argued that the left posterior inferior frontal cortex is involved in binding syntactic frames together, whereas the left superior temporal cortex is involved in retrieval of the syntactic frames stored in memory.
It has also been suggested on the basis of a meta-analysis of chromosome CGH [ 7] and array-CGH [ 8] that progression from invasive cancer to metastasis was accompanied by an increase in the number of CNAs.
On the basis of a meta-analysis of prospective cohort studies (41), it was argued that the ratio of TC:HDL cholesterol is twice as informative at predicting CVD risk than is TC.
Singer et al. found, on the basis of a meta-analysis of 1,448 cases, that one-third of those in acute care hospitals suffered from mental health disorders [ 18].
On the basis of a meta-analysis of 172 studies, Bar-Haim et al. [ 12] pointed out that although attentional bias to threat may largely contribute to the development and maintenance of anxiety over time, the possibility of a causal link between the two has been insufficiently investigated.
On 15 October 2004, following years of litigation and complaints by victims' families, the U.S. Food and Drug Administration issued a public health advisory on these drugs on the basis of a meta-analysis of 24 studies including 4,400 patients (U.S. Food and Drug Administration 2004).
These three studies became the basis of a meta-analysis on the subject as well as the justification to provide a Grade A level recommendation by the Society of Critical Care Medicine (SCCM) and American Society for Parenteral and Enteral Nutrition (A.S.P.E.N). to endorse the use of these enteral supplements in patients with ALI [ 4- 6].
The ARISTOTLE trial (Apixaban for Reduction In STroke and Other ThromboemboLic Events in Atrial Fibrillation) 29 sought to preserve at least 50% of the benefit of warfarin treatment on the basis of a meta-analysis of six previous warfarin placebo trials conducted in NVAF patients.
Numerous studies of this sort have been conducted, providing a basis for a meta-analysis of gene expression data [ 29, 45, 46].
We have analysed the factors determining plant metal uptake efficiency in CWs on the basis of a qualitative meta-analysis of 13 studies with a view to determine whether the part played by metal uptake by plants is relevant in comparison with the other removal processes.
