Castro RMRPS, Barbosa AA, Pedrazzoli M, Tufik S
Casein kinase I epsilon (CKIepsilon) N408 allele is very rare in the Brazilian population and is not involved in susceptibility to circadian rhythm sleep disorders
Behav Brain Res193(1):156-7.193(1):156-7.doi: 10.1016/j.bbr.2008.05.005.