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	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

We read with great interest the article by Marcil and Stern¹ dealing with the risk of the development of subsequent nonmelanoma skin cancers in patients with a history of such cancers. Unfortunately, our Danish-language study² was not included in their meta-analysis, which included only studies published in English.

We carried out prospective investigations of 2 groups of patients. One included 526 consecutive patients with 628 histologically verified nonmelanoma skin cancers treated in our private practice of dermatology from July 1, 1990, to June 30, 1993. The other group included a similar cohort of 638 consecutive patients with 778 tumors treated from July 1, 1995, to June 30, 1998. The results of this study have not yet been published. Both cohorts were evaluated prospectively, with an attempted follow-up period of at least 2 years.

After 2 years, 107 of the 526 patients in the first cohort had developed 251 new tumors, . . . [Full Text of this Article]

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