Excerpt from:
http://www.lifesite.net/ldn/2005/aug/05080803.html
Monday, August 8 2005
World Health Organization Classifies Contraceptives as Highly Carcinogenic
GENEVA, Switzerland, August 8, 2005 (LifeSiteNews.com) - A press release issued on July 29th of this year by the International Agency for Research on Cancer (IARC), a division of the World Health Organization (WHO), declared the little publicized classification of combined estrogen-progestogen oral contraceptives (OCs) as carcinogenic. The IARC placed the contraceptives into their Group 1 classification, the highest classification of carcinogenicity, used only "when there is sufficient evidence of carcinogenicity in humans." (emphasis theirs)...
See the IARC release itself:
http://www.iarc.fr/ENG/Press_Releases/pr167a.html