Hypercapnic normalization of BOLD fMRI: comparison across field strengths and pulse sequences. - Eric R. Cohen; Egill Rostrup; Karam Sidaros; Torben Ellegaard Lund; Olaf B. Paulson; Kâmil Ugurbil; Seong-Gi Kim (NeuroImage, 2004)

Vascular dynamics and BOLD fMRI: CBF level effects and analysis considerations. - Alberto L. Vazquez; Eric R. Cohen; Vikas Gulani; Luis Hernandez-Garcia; Ying Zheng; Gregory R. Lee; Seong-Gi Kim; James B. Grotberg; Douglas C. Noll (NeuroImage, 2006)