Direct comparison of activation maps during galvanic vestibular stimulation: A hybrid H2[15 O] PET—BOLD MRI activation study. - Becker-Bense, Sandra; Willoch, Frode; Stephan, Thomas; Brendel, Matthias; Yakushev, Igor; Habs, Maximilian; Ziegler, Sibylle; Herz, Michael; Schwaiger, Markus; Dieterich, Marianne; Bartenstein, Peter (PLoS ONE, 2020)