Color and shape are the latest weapons in the fight against wrong-route injection, the sometimes fatal error of administering a parenteral to the wrong part of the body. Anesthesiologist and Cardiff University professor Judith Hall has invented a series of color-coded and shaped connectors--one color and shape for intravenous injections, another for spinal administration, and one for nasogastric tubes. "There's no reason why a system-wide approach can't completely get rid of the problem," says Hall. Story | Video