Bell E, Racine E, Chiasson P, Dufourcq-Brana M, Dunn LB, Fins JJ, Ford PJ, Glannon W, Lipsman N, Macdonald ME, Mathews DJ, McAndrews MP. Beyond consent in research. Revisiting vulnerability in deep brain stimulation for psychiatric disorders. Camb Q Healthc Ethics. 2014 Jul; 23(3):361-8.