Positron emission tomographic imaging of neural correlates of a fear acquisition and extinction paradigm in women with childhood sexual-abuse-related post-traumatic stress disorder. - Bremner,J.D.; Vermetten,E.; Schmahl,C.; Vaccarino,V.; Vythilingam,M.; Afzal,N.; Grillon,C.; Charney,D.S. (Psychol Med, 2005)