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Stephan KM, Fink GR, Passingham RE, Silbersweig D, Ceballos-Baumann AO, Frith CD, Frackowiak RS.Stephan KM, et al. Among authors: frackowiak rs.J Neurophysiol. 1995 Jan;73(1):373-86. doi: 10.1152/jn.1995.73.1.373.J Neurophysiol. 1995.PMID: 7714579