Franken, P. ., Dudley, C. ., Estill, S. ., Barakat, M. ., Thomason, R. ., O’Hara, B. ., & McKnight, S. . (2006). NPAS2 as a transcriptional regulator of non-rapid eye movement sleep: genotype and sex interactions. Proceedings of the National Academy of Sciences of the United States of America, 103(18), 7118-23. https://doi.org/10.1073/pnas.0602006103 (Original work published 2006)