Living wills created by terminally ill patients need to gain greater legal recognition in order to ensure their effectiveness, participants at the opening of an international conference on the right to die said Friday.

A living will is a document usually prepared by a person when they are terminally ill, stating at what point they wish medical treatment to be terminated.

The World Federation of Right to Die Societies is a nongovernmental organization with 38 member societies in 23 countries that holds biennial meetings under the banner of "respect self-determination at the time of one's death."