Authors: Michael A Schwarzschild; Kenneth Marek; Shirley Eberly; David Oakes; Ira Shoulson; Danna Jennings; John Seibyl; Alberto Ascherio Journal: Mov Disord Date: 2011-04-29 Impact factor: 10.338
Authors: Kristina A Neely; Peggy J Planetta; Janey Prodoehl; Daniel M Corcos; Cynthia L Comella; Christopher G Goetz; Kathleen L Shannon; David E Vaillancourt Journal: PLoS One Date: 2013-03-11 Impact factor: 3.240