All other animals may be kept alive for three days, in accordance with established ethical guidelines.

He added, "This is a clear violation of the company's ethical guidelines."

He said the firm had complied with all ethical guidelines.

There have even been fledgling attempts to create ethical guidelines, like the ones found at Cyberjournalist.net.

And this diversity challenges us to develop ethical guidelines which apply to the quality rather than the form of the relationship.

"In this area, there are obvious ethical guidelines," he said.

Any artist can join the association, however certain ethical guidelines must be upheld by members.

The ethical guidelines in his report were agreed after a year of debate and discussion.

The association has its own ethical guidelines for its members.

As of 2012, formal ethical guidelines specific to the discipline are not available.