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de Castro-Silva C, de Bruin VM, Cunha GM, Nunes DM, Medeiros CA, de Bruin PF.de Castro-Silva C, et al.J Pineal Res. 2010 Jan;48(1):65-71. doi: 10.1111/j.1600-079X.2009.00726.x.J Pineal Res. 2010.PMID: 20025642Clinical Trial.