Correction: Clinical progression and genetic pathways in body-first and brain-first Parkinson’s disease - Massimiliano Passaretti; Daniel Veréb; Mite Mijalkov; Yu-Wei Chang; Hang Zhao; Blanca Zufiria-Gerbolés; Jiawei Sun; Giovanni Volpe; Natalia Rivera; Matteo Bologna; Joana B. Pereira (Molecular Neurodegeneration)