Gray Matter: Flossing and the Art of Scientific Investigation As dentists demonstrate, there’s more to evidence than the randomized controlled trial. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Sunspots activity: What are sunspots? Sun headed for 'solar minimum' NASA scientists sayMany People Taking Antidepressants Discover They Cannot QuitEarthquake strikes US: California, Oklahoma, Texas and Nebraska hit in quick succession In His Haste to Roll Back Rules, Scott Pruitt, E.P.A. Chief, Risks His AgendaSolar Storm WARNING: Sun to blast Earth with intense radiation TOMORROWNight at the Space Museum: 10 Open Bars and Tons of Kubrick References