Estimation of brain functional connectivity from hypercapnia BOLD MRI data: Validation in a lifespan cohort of 170 subjects. - Xirui Hou; Peiying Liu; Hong Gu; Micaela Chan; Yang Li; Shin-Lei Peng; Gagan S. Wig; Yihong Yang; Denise C. Park; Hanzhang Lu (NeuroImage, 2019)