1. The Association between Negative Symptoms, Psychotic Experiences and Later Schizophrenia: A Population-Based Longitudinal Study Werbelof, Nomi; Dohrenwend, Bruce; Yoffe, Rinat; van Os, Jim; Davidson, Michael; Weiser, Mark 2015 Articles PsychosisSchizophrenia--Risk factorsPsychology, PathologicalMental healthPublic healthPsychology