The Royal College of Midwives said it would study the report carefully.

BBC: Maternity care varies across England

The British Fertility Society (BFS) said it understood the study could cause concern, and that it would continue to review such reports carefully.

BBC: Caution urged over IVF cancer link

Justice Minister Kenny MacAskill said all workers should be free from threat of violence and he would study Mr Henry's bill very carefully when he received it.

BBC: Labour debate: protecting the worker

It hopes to get the drug approved by promising to carefully study the thyroid issue in a big 9, 000-person safety trial that will also look at cardiovascular safety.

FORBES: Drug Safety

On Monday, Tim Anderson, a sell-side analyst at Prudential Equities, wrote in a research note that he and his team believe that Bristol carefully designed Prove-It to show the drugs are the same, perhaps by making the study too small or too short.

FORBES: Bristol Prepares Shot In Statin War