This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
In the case report "Reactive Perforating Collagenosis: Experimental Production of the Lesion," which appeared in the September 1970 Archives, on page 314 the phrase "... flattening of the lesion over about a five-year period" should read "... flattening of the lesion over about a five- to eight-week period."
ERRATUM. Arch Dermatol. 1970;102(5):539. doi:10.1001/archderm.1970.04000110055010