A free clinical search engine, designed to allow users to quickly and easily find and use high-quality research evidence to support their practice and/or care. As well as research evidence Trip also allow clinicians to search across other content types including images, videos, patient information leaflets, educational courses and news. Trip stands for "Translating Research Into Practice".
Here are some of the most important sources for systematic reviews and meta-analyses. To limit your search to meta-analyses: on the search screen scroll down to Publication Type and select Meta-Analysis.