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Obsessional neurosis is generally considered to have a poor prognosis (Farr and Stewart, 1942; Müller, 1953; Rüdin, 1953; Ingram, 1961; Noyes and Kolb, 1963; Kringlen, 1965). Factors adversely affecting prognosis include early onset of symptoms, premorbid obsessional personality and the emergence of complications.
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Chaim M. Rosenberg (1968) studied this question.
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