Functional network in the prefrontal cortex during episodic memory retrieval. - Satoshi Umeda; Yoshihide Akine; Motoichiro Kato; Taro Muramatsu; Masaru Mimura; Susumu Kandatsu; Shuji Tanada; Takayuki Obata; Hiroo Ikehira; Tetsuya Suhara (NeuroImage, 2005)