RT Journal Article SR Electronic T1 Decline in breast cancer since HRT study JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 160 OP 161 DO 10.1503/cmaj.061725 VO 176 IS 2 A1 Kondro, Wayne YR 2007 UL http://www.cmaj.ca/content/176/2/160.2.abstract