“We [Battin and Timothy Quill] firmly believe that physician-assisted death should be one–not the only one, but one–of the last-resort options available to a patient facing a hard death. We agree that these options should include high dose pain medication if needed, cessation of life-sustaining therapy, voluntary cessation of eating and drinking, and terminal sedation. We also believe, however, that physician-assisted dying, whether it is called physician-assisted death or physician aid in dying or physician-assisted suicide, should be among the options available to paients at the end of life.”