Video 6. Sample 38.
Download video file (2.1MB, mp4)
DOI: 10.7554/eLife.34257.016
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.