Wild Oats, Pathmark Warn on Results  NEW YORK (Reuters) - Natural and organic foods retailer  Wild Oats Markets Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=OATS.O target=/stocks/quickinfo/fullquote"&gt;OATS.O&lt;/A&gt; and Pathmark Stores Inc.  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=PTMK.O target=/stocks/quickinfo/fullquote"&gt;PTMK.O&lt;/A&gt; both warned on Monday that their full-year results  would miss Wall Street forecasts because profit margins were  being squeezed by aggressive price cuts.