There is a growing body of evidence showing the potential efficacy of community interventions to address public health problems and disseminate health knowledge, however there exists a large research gap in the literature evaluating such interventions [ 4- 7, 3].
This is especially important for the epidemiology of climate change, for which large methodological challenges and research gaps exist (Xun et al. 2010).
There are numerous research gaps and large, adequately controlled trials are still needed for most of the interventions we considered.
By and large, research has not indicated whether the immigrant achievement gap is a homogenous phenomenon across countries.
Based on this rationale, we undertook a review exercise aimed at summarizing the results reported in a large range of research studies conducted in India, to identify research gaps and inform health research priorities.
Identifying research gaps for PCBs is considerably more difficult, because a large volume of epidemiologic and mechanistic data has been published since the last IARC evaluation (IARC 1987).
The worksite is an advantageous setting to reach large, diverse segments of the population with interventions to increase F&V intake, but research gaps exist.
However, the large number of excluded dataset and meta-analysis results is an indicator for remaining research gaps concerning HVGICs.
PERCH is a large etiology study, but it does not stand alone nor does it fill all the key research gaps in the field.
