Jan 14 (Reuters) - Canada's main stock index opened flat on Tuesday as gains in healthcare stocks were offset by weak resources stocks, while investors awaited an interim Sino-U.S. trade deal.
* At 9:33 a.m. ET (1433 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 0.29 points, or 0%, at 17,293.71.