Suppression of medical information

Medical cover-up
Non-disclosure of medical test results
Deception about effects upon health
Companies hide medical test results that show their product to be unhealthy so that they may continue to sell the product.
Some USA manufacturers of silicone breast implants deliberately deceived women clients, claiming ruptures of the implants to be much less frequent than their test results showed.

Some USA tobacco manufacturers have failed to reveal commercially unfavourable test results about the addictiveness of tobacco.

(G) Very specific problems