LEUKOPLAKIA BUCCALIS

作者：H. H. HAZEN · 发表于：JAMA · 年份：1922 · DOI：10.1001/jama.1922.02640180021005 · 被引用次数：4 · 研究领域：Linguistic Studies and Language Acquisition、Minority Rights and Languages

Many irritants seem to produce cancer.The injection of scarlet red, and, recently, the application of coal tar have been found regu¬ larly .tocause cancer.While irritation undoubtedly has much to do with the etiology of cancer, certain regions of the body, where irritation is more likely to occur than on any other part of the body, seem to be practically immune from cancer.I have never seen a cancer of the palm of the hand, for instance.Dr. Ochsner's theories about parasites being the cause of cancer are interesting.He thinks that a parasite that produces cancer is present in human excrement.The obvious objection to this theory, however, is that if these parasites are present in the human excrement, cancer