Sleep Science 7 (2014) 126–127 HOSTED BY Available online at www.sciencedirect.com www.elsevier.com/locate/ssci Erratum Erratum to “Screening for polymorphisms in the AANAT gene and their association with extreme diurnal preference” [Sleep Sci. 6 (4) (2013) 141–145 Bruna Del Vechio Koikea, Danyella Silva Pereiraa, Sergio Tufika, Mario Pedrazzolib,n a Department of Psychobiology, Universidade Federal de São Paulo, Brazil Department of Gerontology, Universidade de São Paulo, Brazil b In the article “Screening for polymorphisms in the AANAT gene and their association with extreme diurnal preference” by Bruna Del Vechio Koike, Danyella Silva Pereira, Sergio Tufik and Mario Pedrazzoli, which appeared on pages 141–145 of the December 6, 2013 issue 4. The legend in Fig. 2 contained a misprint. The label of the first (left) column was missing one polymorphism. Instead GATAA, the correct is GACTAA. The letter “C” was not there. Another mistake is concerned about Table 3. The last polymorphism was included in the analysis and the correct allele is A, not C. Therefore, all the haplotypes in that table ends with the A allele in the last polymorphisms. So, the haplotypes in the table are: GACTAA, CACTAA, CACAAA, CGCTAA e GACAAA as showed in Fig. 2. Fig. 2 n Corresponding author. E-mail address: http://dx.doi.org/10.1016/j.slsci.2014.11.005 1984-0063/ 127 Sleep Science 7 (2014) 126–127 Table 3 Haplotype Frequency Association (χ2; p) GACTAA CACTAA CACAAA CGCTAA GACAAA 0.558 0.350 0.047 0.012 0.011 1.82; 4.44; 0.08; 0.69; 1.37; 0.17 0.03* 0.77 0.40 0.24