Thousands of Canadian women have had silicone breast implant surgery. Apart from some known complications, next-generation implants, approved by Health Canada in 2006, were said to be safe. Yet in recent years thousands of women have had their implants removed because of various problems. New studies have shown that silicone implants are linked to the development of autoimmune diseases and a rare form of cancer. An inquiry conducted by Enquête in collaboration with the International Consortium of Investigative Journalists, Radio-Canada, CBC and the Toronto Star revealed that Health Canada approved the release of these implants despite a lack of information on long-term effects, and allowed manufacturers to withhold information on possible adverse side effects for years.