"And if there are any ethical concerns, the money will be returned."

There are difficult ethical concerns about the use of animals in research.

The ethical concern that needs to be addressed here is one of public health.

Nor do moral and ethical concerns slow him down for long.

Later works dealt with ethical concerns in the modern world.

There are a number of ethical concerns regarding this practice.

In addition to the question of fairness, there are also ethical concerns.

There can be some ethical concerns to these expert witnesses.

Art's importance is that it can raise difficult ethical concerns like no other medium.

Some large drug companies have refused to offer bonuses out of ethical concerns.