http://professional.medtronic.com/pt/neuro/dbs-md/prod/activa-pc/index.htm#.WOSyq2ekJ9M
http://professional.medtronic.com/pt/neuro/dbs-md/prod/activa-rc/index.htm#.WOSzCWekJ9M
http://professional.medtronic.com/pt/neuro/dbs-md/prod/activa-sc/index.htm#.WOSzHmekJ9M
https://www.michaeljfox.org/foundation/news-detail.php?fda-approves-new-deep-brain-stimulation-device
http://dbsacompletenobrainer.co.uk/Wordpress/