I didn't go to university http://cal-charleroi.be/index.php/nanomediceneu-7e18.pdf#wade intranet.onemedicalgroup.co.uk  NEW YORK, July 16 (Reuters) - The dollar eased and U.S.stocks fell on Tuesday, snapping an eight-day advance by thebenchmark S&P 500 index, as investors took a cautious stanceahead of the Federal Reserve chief's testimony to a U.S.congressional panel on Wednesday.