Franken, P., Dudley, C. A., Estill, S. J., Barakat, M., Thomason, R., O'Hara, B. F., & McKnight, S. L. (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)