Bestmann, S., Baudewig, J., Siebner, H. R., Rothwell, J. C., & Frahm, J. (2004). Functional MRI of the immediate impact of transcranial magnetic stimulation on cortical and subcortical motor circuits. European Journal of Neuroscience, 19(7), 1950-1962. Retrieved from http://www3.interscience.wiley.com/cgi-bin/fulltext/118791175/HTMLSTART.