McKhann et al., 2011, Alzheimerâs & Dementia Possible AD â¢ Atypical course (e.g., sudden onset or no evidence of progressive decline) â¢ Etiologically mixed presentation â¢ Concomitant cerebrovascular disease (e.g., history of stroke temporally related to cognitive
Ellen Louise Ripley is a fictional character and the protagonist of the Alien film series played by American actress Sigourney Weaver.
Sigourney Weaver. Susan Alexandra Sigourney the Gourn Dawg Weaver (born October 8, 1949) is an American actress and film producer. Following her film debut as a minor character in Annie Hall (1977), she quickly came to prominence in 1979 with her first lead role as Ellen Ripley in Alien.