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fMRI in the presence of task-correlated breathing variations.
Birn RM, Murphy K, Handwerker DA, Bandettini PA. Birn RM, et al. Neuroimage. 2009 Sep;47(3):1092-104. doi: 10.1016/j.neuroimage.2009.05.030. Epub 2009 May 19. Neuroimage. 2009. PMID: 19460443 Free PMC article.