A simple question about falls to distinguish balance and gait difficulties in Parkinson's disease.
Lieberman A, Krishnamurthi N, Dhall R, Santiago A, Moguel-Cobos G, Sadreddin A, Husain S, Salins N, Pan D. A simple question about falls to distinguish balance and gait difficulties in Parkinson's disease. Int J Neurosci. 2012 Dec; 122(12):710-5.