Plasma multianalyte profiling in mild cognitive impairment and Alzheimer disease

In the article “Plasma multianalyte profiling in mild cognitive impairment and Alzheimer disease” by W.T. Hu et al. (Neurology® 2012;79: 897–905), there is an error in the first paragraph on page 899. The third sentence should read “At WU, blood was collected in EDTA in polypropylene tubes after overnight fasting between 7:30 and 8:00 am and centrifuged (2,000 g × 15 minutes at 4°C) for separation into plasma and cellular components.” The authors regret the error.