RT Journal Article SR Electronic T1 Both low-dose and micro-dose 17β-oestradiol reduced hot flushes JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 43 OP 43 DO 10.1136/ebm.13.2.43 VO 13 IS 2 YR 2008 UL http://ebm.bmj.com/content/13/2/43.abstract AB