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APA Citation
Girotti, F., Carella, F., Grassi, M. P., Soliveri, P., Marano, R., & Caraceni, T. (1986). motor and cognitive performances of parkinsonian patients in the on and off phases of the disease.. Journal of neurology, neurosurgery and psychiatry, 49(6), 657–660. http://access.bl.uk/ark:/81055/vdc_100144478538.0x000028