RT Journal Article SR Electronic T1 Risk of cancer was still increased over 2 years after stopping hormone therapy JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 142 OP 142 DO 10.1136/ebm.13.5.142 VO 13 IS 5 YR 2008 UL http://ebm.bmj.com/content/13/5/142.abstract AB