An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Weeke E, Bendixen G.Weeke E, et al.Allergy. 1979 Jun;34(3):131-3. doi: 10.1111/j.1398-9995.1979.tb01561.x.Allergy. 1979.PMID: 495915No abstract available.