@article{WRI+06, 
	Author = {Wan, X. and Riera, J. and Iwata, K. and Takahashi, M. and Wakabayashi, T. and Kawashima, R.},
	Title = {The neural basis of the hemodynamic response nonlinearity in human primary visual cortex: {I}mplications for neurovascular coupling mechanism},
	Journal = {Neuroimage},
	Year = {2006}
}