CSF Biomarkers Associated with Disease Heterogeneity in Early Parkinson’s Disease: The Parkinson’s Progression Marker’s Initiative Study

Kang JH, Mollenhauer B, Coffey CS, Toledo JB, Weintraub D, Galasko DR, Irwin DJ, Van Deerlin V, Chen-Plotkin AS, Caspell-Garcia C, Waligorska T, Taylor P, Shah N, Pan S, Zero P, Frasier M, Marek K, Keiburtz K, Jennings D, Tanner CM, Simuni T, Singleton A, Toga AW, Chowdhury S, Trojanowski JQ, & Shaw LM on behalf of the Parkinson’s Progression Markers Initiative