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.
a Ruptured bullous lesions of pemphigus vulgaris. b Histology showing a layer of discohesive basal cells. c Direct immunofluorescence showing peri-cellular staining for IgG. d Endoscopic image showing multiple small geographic ulcerations in the antrum
