Jing Zhang, Yan Zhu, Guanxia Zhan, Polina Fenik, Lori Panossian, Maxime M. Wang, Shayla Reid, David Lai, James G. Davis, Joseph A. Baur, and Sigrid Veasey, «Extended Wakefulness: Compromised Metabolics in and Degeneration of Locus Ceruleus Neurons,» The Journal of Neuroscience 34 (2014): 4418–31.