Schmähl D
Institut für Toxikologie und Chemotherapie, Deutsches Krebsforschungszentrum, Heidelberg.
Naturwissenschaften. 1988 Jul;75(7):334-40. doi: 10.1007/BF00368323.
The possibilities and limitations in cancer prevention are shown by means of some examples and historical facts. A necessary prerequisite for effective prevention is to know the exact cause of cancer. This is known for some tumor types (e.g., bronchial cancer), while for others it is hardly known (e.g., breast cancer). There are many factors which influence the whole process of carcinogenesis. Exposure to environmental pollutants in a wide sense represents only one of many possible etiologies. This has to be taken into consideration.
通过一些实例和历史事实展示了癌症预防的可能性和局限性。有效预防的一个必要前提是了解癌症的确切病因。某些肿瘤类型（如支气管癌）的病因已为人所知，而其他一些肿瘤类型（如乳腺癌）的病因却几乎不为人知。有许多因素会影响致癌的整个过程。从广义上讲，接触环境污染物只是众多可能病因之一。必须考虑到这一点。
