The food and drug agency's involvement is crucial because drug manufacturers cannot change a label without the agency's approval.

In particular I want to assure you that we are not trying to change the system without your approval.

You cannot change your method without our prior approval.

He said no patient taking the drugs should change medication without a physician's approval.

These officials concede that General Mundy formally had the authority to change recruitment policy without their approval.

The rest of us can go about our work of changing the world with or without their approval.

Never change your medications without your doctor's approval and guidance.

Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Third, the unilateral action to change the election law without the Parliament's approval would establish a dangerous precedent.

It was changed without Pushead's approval, for the album.