ARNA - positive data <a href="http://finance.yahoo.com/news/Positive-Data-from-Arena-prnews-2665863508.html?x=0&.v=1" rel="nofollow" target="_blank">http://finance.yahoo.com/news/Positive-Data-from-Arena-prnews-2665863508.html?x=0&.v=1</a>