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PSYCHIATRIKI 21 (4), 2010 SEASONALITY, SUICIDALITY AND MELATONIN 33162. Souetre E, Salvati E, Belugou JL, Douillet P, BracciniT, Dargouer G. Seasonality of suicides: environmental,sociological and biological covariations. J Affect Disord1987, 13:215–22563. Wehr TA. Melatonin and seasonal rhythms. J Biol Rhythms1997, 12:707–70864. Arendt J, Wirz-Justice, Bradtke J. Annual rhythm of serummelatonin in man. Neurosci Lett 1977, 7:327–33065. Brewerton TD. Seasonal variation of serotonin functionin humans: Research and clinical implications. Ann ClinPsychiatry 1989, 1:153–16466. Carman JS, Post RM, Buswell R, Goodwin FK.Negativeeffects of melatonin on depression. Am J Psychiatry 1976,131:1181–118667. Anton-Ray F, Chou C, Anton S et al. Brain serotoninconcentration: Elevation following intraperitoneal administrationof melatonin. Science 1986, 162:277–27868. Vermes I. Dull G, Telegdy G, Lissak K. Possible role ofserotonin in the monoamine- induced inhibition of thestress mechanism in the rat. Acta Physiol Acad ScientHungar 1972, 42:219–22369. Kevan SM. Perspectives on season of suicide: a review.Soc Sci Med 1980, 14:369–37870. Paparrigopoulos T, Kontoangelos K. Melatonin and mentaldisorders. Psyschiatriki 2003, 14:287–302Corresponding author: B.J. Havaki-Kontaxaki, Ast. Professor ofPsychiatry, 74 Vas. Sophias Ave., GR-115 28 Athens, GreeceΤel.: +30 210-72 89 257e-mail: bikont@med.uoa.gr
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