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An approach to quantifying the potential importance of residual confounding in systematic reviews of observational studies: a GRADE concept paper

Government Accountability Office report, available here: www.gao.gov/products/GAO-11-313 1,741 views 0 faves 0 comments Uploaded on March 8, 2011 Taken on March 3, 2011

Some black leaders have taken up the mentholated banner

The black smoke you see when you blow out a candle is almost all soot

I had posters of a musician who had died by suicide plastered on my bedroom walls and was listening to Bleach every day

[1] Around the world [edit] China [edit] The Chinese tobacco industry markets herbal cigarettes as having health benefits, yet scientific studies show there is no difference to peoples' health between Chinese herbal cigarette brands and regular cigarette brands