The content is available as a PDF (1.5 MB).
. 2019 Nov 18;34(Suppl 1):1–233. doi: 10.1007/s12291-019-00859-4
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.