“Subthalamic deep brain stimulation with a constant-current device in Parkinson’s disease: an open-label randomised controlled trial,” by Michael S. Okun, Bruno V. Gallo, George Mandybur, Jonathan Jagid, Kelly D. Foote, Fredy J. Revilla, Ron Alterman, Joseph Jankovic, Richard Simpson, Fred Junn, Leo Verhagen, Jeff E. Arle, Blair Ford, Robert R. Goodman, R. Malcolm Stewart, Stacy Horn, Gordon H. Baltuch, Brian H. Kopell, Frederick Marshall, DeLea Peichel, Rajesh Pahwa, Kelly E. Lyons, Alexander I. Troster, Jerrold L. Vitek, and Michele Tagliati (Vol. 11, No. 2, February 2012, p. 140-149).
www.thelancet.com/journals/laneur/article/PIIS1474-4422(11)70308-8/abstract
