Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic design of the stability study. T1 to T5 represent time points for BDNF measurements. Blue crosses signify freezing at −80 °C. The grey box at T4 indicates the time point which was excluded from the analysis due to a measurement error. BDNF: brain-derived neurotrophic factor, EDTA: ethylenediaminetetraacetic acid, ELISA: enzyme-linked immunosorbent assay, hrs: hours, min: minutes, rpm: rounds per minute, T: time point.
