I totally understand. It's a difficult subject we're dealing with.
Dr. Poirier, I'd like to turn to you.
We've had other witnesses who have talked about the need to have clearly defined, objectively accessible criteria included in advance requests, especially after a diagnosis and when the disease is progressing. In your mind, if advance requests were instituted, how often should those be renewed and reviewed by the patient, the caregivers and the physicians' team? Do you have any insight that you can share with us?