Abnormal structure and functional connectivity of the anterior insula at pain-free periovulation is associated with perceived pain during menstruation - Wang-huan Dun; Jing Yang; Ling Yang; Dun Ding; Xue-ying Ma; Feng-Li Liang; Karen M. von Deneen; Shao-hui Ma; Xiao-ling Xu; Jixin Liu; Ming Zhang (Brain Imaging and Behavior, 2017)