Clock polymorphisms and circadian rhythms phenotypes in a sample of the Brazilian population - Pedrazzoli Neto, Mario; Louzada, Fernando Mazzili; Pereira, Danyella Silva; Benedito-Silva, Ana Amélia; Lopez, Alberto Remesar; Martynhak, Bruno Jacson; Korczak, Anna Ligia; Koike, Bruna Del Vechio; Barbosa, Ana Alves; D'Almeida, Vania; Tufik, Sergio (Chronobiology International, 2007)