Johnston, S., Leek, E. C., Kerai, J. H., Hindle, J. V., & Bracewell, R. M. (2014). Impaired Visuospatial Transformation but Intact Sequence Processing in Parkinson Disease. Cognitive And Behavioral Neurology, 27(3), pp. 130-138. doi:10.1097/WNN.0000000000000032

Johnston, Stephen, E. Charles Leek, Julie H. Kerai, John V. Hindle, and R. Martyn Bracewell. "Impaired Visuospatial Transformation but Intact Sequence Processing in Parkinson Disease." Cognitive And Behavioral Neurology 27, no. 3 (2014): 130-138.

Johnston, Stephen, et al. "Impaired Visuospatial Transformation but Intact Sequence Processing in Parkinson Disease." Cognitive And Behavioral Neurology 27.3 (2014): 130-138.