Fed's Yellen gets medical attention after struggling with speech

By Jonathan Spicer and Svea Herbst-Bayliss AMHERST, Mass. (Reuters) - Federal Reserve Chair Janet Yellen received medical attention on Thursday after coughing, pausing and struggling to finish a speech in which she said the U.S. central bank was on track to raise interest rates this year for the first time in nearly a decade. The 69-year-old Fed chief, who had been speaking for nearly an hour before a packed university auditorium here, appeared to lose her place in reading the last few lines of