His most recent book is a defense of physician-assisted suicide.

Opponents say the risk to patients and to society of physician-assisted suicide is great.

But he is the central figure in a landmark case on physician-assisted suicide.

The case raised the issue of whether there is a Federal constitutional right to physician-assisted suicide.

The issue of physician-assisted suicide is obviously a sticky one.

Q. Can you comment on physician-assisted suicide for older people?

In the northwest American state, "physician-assisted suicide" has been legal since 1997.

For the last few years, physician-assisted suicide has had a checkered political career.

If legalized, the rate of physician-assisted suicide will increase, but not very much.

Physician-assisted suicide is legal under the same conditions as euthanasia.