In some states, women with dense tissue must now be told that it could increase their risk of cancer, which medical groups said would lead to needless testing.img width='1' height='1' src='http://rss.nytimes.com/c/34625/f/640346/s/24d78ec5/mf.gif' border='0'/br/br/a href="http://da.feedsportal.com/r/148658171406/u/0/f/640346/c/34625/s/24d78ec5/a2.htm"img src="http://da.feedsportal.com/r/148658171406/u/0/f/640346/c/34625/s/24d78ec5/a2.img" border="0"//aimg width="1" height="1" src="http://pi.feedsportal.com/r/148658171406/u/0/f/640346/c/34625/s/24d78ec5/a2t.img" border="0"/