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.
From Monatshefte fur Praktische Dermatologie, Baud XII, No. 12.–H.
PDF (3.9 MB)
