Tens of thousands of demonstrators gathered yesterday evening to stand before this city 's legislature building and call for free elections and the resignation of Hong Kong 's leader .
ONG KONG , July 9 Tens of thousands of demonstrators gathered tonight before the legislature building here to call for free elections and the resignation of Hong Kong 's leader .
completed by identification of completed studies that address research question, then evaluate the results, and arrive at a conclusion &gt; meta analysis