Genetic influences on hippocampal volume differ as a function of testosterone level in middle-aged men.
Panizzon MS, Hauger RL, Eaves LJ, Chen CH, Dale AM, Eyler LT, Fischl B, Fennema-Notestine C, Franz CE, Grant MD, Jacobson KC, Jak AJ, Lyons MJ, Mendoza SP, Neale MC, Prom-Wormley E, Seidman LJ, Tsuang MT, Xian H, Kremen WS. Genetic influences on hippocampal volume differ as a function of testosterone level in middle-aged men. Neuroimage. 2012 Jan 16; 59(2):1123-31.