Media type: E-Article Title: Vitamin D and tryptophan concentrations in patients with Alzheimer's disease Contributor: Leblhuber, Friedrich; Schneider, Andrea; Schroecksnadel, Sebastian; Brunschütz, Dietmar; Steiner, Kostja; Fuchs, Dietmar Published: Wiley, 2013 Published in: International Journal of Geriatric Psychiatry, 28 (2013) 2, Seite 216-217 Language: English DOI: 10.1002/gps.3810 ISSN: 0885-6230; 1099-1166 Keywords: Psychiatry and Mental health ; Geriatrics and Gerontology Origination: Footnote: