RT Journal Article SR Electronic T1 Health care use and risk of ovarian cancer: Is there a link? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 949 OP 950 DO 10.1503/cmaj.070179 VO 176 IS 7 A1 Fung-Kee-Fung, Michael A1 Brouwers, Melissa A1 Oliver, Thomas K. A1 Rosen, Barry YR 2007 UL http://www.cmaj.ca/content/176/7/949.abstract