Sex differences in brain activity during aversive visceral stimulation and its expectation in patients with chronic abdominal pain: A network analysis. - Jennifer S. Labus; Bruce D. Naliboff; J. Fallon; Steve M. Berman; Brandall Y. Suyenobu; Joshua A. Bueller; Mark A. Mandelkern; Emeran A. Mayer (NeuroImage, 2008)