[Skip to Navigation]
April 1962


Author Affiliations

Director, Residency Training and Research The University of Oklahoma Medical Center 800 N.E. 13th St. Oklahoma City 4

Arch Dermatol. 1962;85(4):543. doi:10.1001/archderm.1962.01590040107026

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.


To the Editor:  The comments of Dr. Pegum are interesting, but I believe another explanation is more likely. Actually our observations are the same whether the tar is placed on the skin 15 minutes or 24 hours prior to irradiation with ultraviolet light. In our studies the explanation for the failure of photosensitization lies in the fact that the artificial light source does not contain the activating wavelengths. As shown in our second paper (Arch. Derm. 84:997 [Dec.] 1961) on exposure to direct rays of the sun, all of these tar substances act as photosensitizers.

First Page Preview View Large
First page PDF preview
First page PDF preview
Add or change institution