W ASHINGTON — Researchers, doctors, their patients and supporters ventured out of labs, hospitals and offices Friday to stand up to what they call a blitz on life-saving science by the Trump administration. In the nation's capital, a couple thousand gathered at the Stand Up for Science rally. Organizers said similar rallies were planned in more than 30 U.S. cities. Politicians, scientists, musicians, doctors and their patients were expected to make the case that firings, budget and grant cuts