RT Article T1 A factor-analytic study of childhood symptoms antecedent to Schizophrenia JF Journal of abnormal psychology VO 85 IS 6 SP 543 OP 549 A2 Roff, James D. LA English YR 1976 UL https://krimdok.uni-tuebingen.de/Record/1631445316 K1 Verlaufsstudien K1 Schizophrenie K1 Frühauffälligkeit