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In a previous study (Liss, Welner and Robins, 1973), the hospital records of 212 patients who received a diagnosis of personality disorder other than antisocial personality were studied. The clinical information about these patients was used to arrive at an established psychiatric diagnosis based upon the rigorous diagnostic criteria designed for research (Feighner, Robins, Guze, Woodruff, Winokur, and Munoz, 1972). In 118 cases (56 per cent) the clinical symptoms and the course of the disorder met the required diagnostic criteria for one or more of the established psychiatric diagnoses. The remaining 94 patients (44 per cent) had too few symptoms to meet these criteria.
Welner et al. (Mon,) studied this question.