Illes, J; Gallo, M; Kirschen, MP (2006). "An ethics perspective on transcranial magnetic stimulation (TMS) and human neuromodulation". Behavioural neurology17 (3-4): 149–57. PMID,17148834
Gross, R. (2008). "What Happened to Posteroventral Pallidotomy for Parkinson’s Disease and Dystonia?". Neurotherapeutics5 (2): 281–293. doi:10.1016/j.nurt.2008.02.001. PMID 18394570.