Key points are not available for this paper at this time.
Department of Pathology, Academic Hospital Jette, Free University of Brussels, Belgium Address correspondence and reprint requests to Dr. Günter Kloppel, Professor and Chairman, Department of Pathology, Academic Hospital Jette, Free University of Brussels, Laarbeeklaan, 101, B-1090, Brussels, Belgium. Manuscript received December 1, 1992; revised manuscript accepted February 9, 1993.
Klöppel et al. (Mon,) studied this question.