http://info.cancerresearchuk.org/news/archive/cancernews/2012-02-21-Study-uncovers-types-of-ovarian-cancer-linked-to-endometriosisCancer Research UKen2012-02-21T18:06+00:00Study uncovers types of ovarian cancer linked to endometriosis http://info.cancerresearchuk.org/news/archive/pressrelease/2012-02-22-157000-UK-kids-start-smoking-every-yearCancer Research UKenPressRelease2012-02-22T00:01+00:005,200 classrooms of UK kids start smoking every year