"The Court considers that the "other very exceptional cases" within the meaning of the judgment in N. v. the United Kingdom (s 43) which may raise an issue under Article 3 should be understood to refer to situations involving the removal of a seriously ill person in which substantial grounds have been shown for believing that he or she, although not at imminent risk of dying, would face a real risk, on account of the absence of appropriate treatment in the receiving country or the lack of access to such treatment, of being exposed to a serious, rapid and irreversible decline in his or her state of health resulting in intense suffering or to a significant reduction in life expectancy. The Court points out that these situations correspond to a high threshold for the application ofArticle 3 of the Convention in cases concerning the removal of aliens suffering from serious illness."