RT Journal Article SR Electronic T1 Oestrogen plus progestin reduced risk of fracture in postmenopausal women JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 82 OP 82 DO 10.1136/ebm.9.3.82 VO 9 IS 3 YR 2004 UL http://ebm.bmj.com/content/9/3/82.abstract AB