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Normative studies of the Polish adaptation of Th e Ruff Figural Fluency Test (RFFT) were conducted on 475 men and women aged 16-79, taking into consideration such factors as gender, education, and place of residence. Clinical studies were also performed on a group of patients with left -, right-, or bilateral hemispheric brain lesions, Parkinson’s disease, Huntingon’s disease, progressive obturational...
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