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Förstl H, Howard R, Burns A, Levy R.Förstl H, et al. Among authors: levy r.J R Soc Med. 1991 Jul;84(7):432-4. doi: 10.1177/014107689108400717.J R Soc Med. 1991.PMID: 1865454Free PMC article.No abstract available.
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Förstl H, Burns A, Jacoby R, Levy R.Förstl H, et al. Among authors: levy r.J Clin Psychiatry. 1991 Jun;52(6):268-71.J Clin Psychiatry. 1991.PMID: 2055900
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Howard R, Almeida O, Levy R.Howard R, et al. Among authors: levy r.Psychopathology. 1993;26(2):95-101. doi: 10.1159/000284806.Psychopathology. 1993.PMID: 8321898Review.