https://onlinelibrary.wiley.com/doi/epdf/10.1002/mrm.10145 (Publisher version)
Van de Moortele, P.-F., Pfeuffer, J., Glover, G., Ugurbil, K., & Hu, X. (2002). Respiration-Induced B0 Fluctuations in the Human Brain at 7 Tesla and its Spatial Distribution. Magnetic Resonance in Medicine, 47(5), 888-895. doi:10.1002/mrm.10145.