TORONTO, Feb 23 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Falls 109.37 points, or 0.59 percent, to 18,307.37 at open.TORONTO, Feb 23 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Unofficially closes down 82.39 points, or 0.45 percent, at 18,334.35.