Prange, S. ., Pagonabarraga, J. ., Krack, P. ., Kulisevsky, J. ., , Tremblay, L. ., … Broussolle, E. . (2018). Historical crossroads in the conceptual delineation of apathy in Parkinson’s disease. Brain : A Journal of Neurology. https://doi.org/10.1093/brain/awx362 (Original work published 2018)

Thobois, S. ., Brefel-Courbon, C. ., Le Bars, D. ., & -Faure, S. . , V. Molecular Imaging of Opioid System in Idiopathic Parkinson’s Disease. International Review of Neurobiology, 141, 275-303. https://doi.org/10.1016/bs.irn.2018.07.029 (Original work published 2018)