http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Tiny robots that aid surgical procedures and medical checkups currently are the focus of intense research and study. In fact, some of these small-scale devices already are in practical use. http://www.physorg.com/news151005939.html Medicine & Health Mon, 12 Jan 2009 18:05:39 EST news151005939