D. Reddy, “Neurosteroids: Endogenous Role in the Human Brain and Therapeutic Potentials,” Prog Brain Res 186 (2010): 113; F. De Sousa et al., “Progesterone and Maternal Aggressive Behavior in Rats,” Behavioural Brain Res 212 (2010): 84; G. Pinna et al., “Neurosteroid Biosynthesis Regulates Sexually Dimorphic Fear and Aggressive Behavior in Mice,” Neurochemical Res 33 (2008): 1990; K. Miczek et al., “Neurosteroids, GABAA Receptors, and Escalated Aggressive Behavior,” Horm Behav 44 (2003): 242.