Decreased Melatonin Levels in Postmortem Cerebrospinal Fluid in Relation to Aging, Alzheimer’s Disease, and Apolipoprotein E-ε4/4 Genotype 1

Liu, Rong-Yu, Zhou, Jiang-Ning, van Heerikhuize, Joop · The Journal of Clinical Endocrinology & Metabolism · 1999