Who is Mrs. K. from On Death and Dying and what is their importance?

Mrs. K. was admitted to the hospital with terminal liver diease. She had been convinced that a faith healer had completely cured her, and she is used by Kubler-Ross as an example of the kind of denial patients can experience when they learn their lives are going to end. Mrs. K. was the mother of two small children, and she was unable to grasp the reality of her impending death.