Martinez-Martin, P. Radicati, F. G. Rodriguez Blazquez, C. and Wetmore, J. Kovacs, N. Chaudhuri, K. Ray Stocchi, F. and Vuletic, Vladimira Falup-Pecurariu, Cristian Diaconu, Stefania and Johansson, Anders Sundgren, Mathias Simitsi, Athima and Stefanis, Leonidas Gurevich, Tanya Migirov-Sanderovich, Angel and Ezra, Adi Guekht, Alla Popov, Georgy Stamelou, Maria and Giagkou, Nikolaos Stefani, Alessandro Cerroni, Rocco Corbo, Massimo Grassi, Andrea Dellaporta, Dionysia Tsolaki, Magda and Ariadne, Vakirli Kefalopoulou, Zinovia Ellul, John Mir, Pablo Adarmes, Astrid D. Mendez-del-Barrio, Carlota and Skorvanek, Matej Necpal, Jan Bostantjopoulou, Sevasti Zoe, Katsarou Minar, Michal Simu, Mihaela Rosca, Cecilia and Popovici, Maria Kostic, Vladimir S. Marti, Maria J. and Planelles, Lluis Kovacs, Norbert Aschermann, Zsuzsanna and Juhasz, Annamaria Harmat, Mark PDCS European Study Grp, Extensive validation study of the Parkinson's Disease Composite Scale, European Journal of Paediatric Neurology, (26), 1281-1288, 2019, Wiley, 1090-3798