Serum uric acid is associated with apathy in early, drug-naïve Parkinson's disease. Alzforum, 15 Jan 2016 Picillo M, Santangelo G, Moccia M, Erro R, Amboni M, Prestipino E, Longo K, Vitale C, Spina E, Orefice G, Barone P, Pellecchia…