Serum caffeine and metabolites are reliable biomarkers of early Parkinson disease.
Fujimaki M, Saiki S, Li Y, Kaga N, Taka H, Hatano T, Ishikawa KI, Oji Y, Mori A, Okuzumi A, Koinuma T, Ueno SI, Imamichi Y, Ueno T, Miura Y, Funayama M, Hattori N.
Fujimaki M, et al. Among authors: ishikawa ki.
Neurology. 2018 Jan 30;90(5):e404-e411. doi: 10.1212/WNL.0000000000004888. Epub 2018 Jan 3.
Neurology. 2018.
PMID: 29298852
Free PMC article.