K. Brunner - Böcker

It is a very special honour for me to be able to present this handbook of medical oncology, which under diverse headings and origins covers such a vast spectrum of experience. I be­ lieve the reader will be struck in particular by the impressive volume of information available, especially with regard to childhood tumours, which represent, today, an immense "lab­ oratory of hope". It is in this very field that we oncologists have been able to obtain the most consoling results in recent years. I feel sure that all those who read these chapters will find that their oncological competence is enriched and also in a certain sense that their wish to contribute to progress in can­ cer research and treatment has been renewed. In conclusion, my most heartfelt congratulations go to the authors for the excellent job they have done, as well as my ad­ miration for having been able to concentrate so much pre­ cious and innovative information into so little space. Umberto Veronesi Preface Since 1976, the VICC has been holding chemotherapy courses in all parts of the world, excluding North America and Australia. The Manual of Cancer Chemotherapy, origi­ nally devised as a didactic tool to be used by course partici­ pants, expanded itself in the successive editions to a compre­ hensive, although schematic, textbook of medical oncology.

The fateful days of the great stock market crash entered modem history almost 50 years ago to this day. The cyclic turning point of the U. S. economy oc­ curred, however, around June 1929, and economic activity receded substantial­ ly over the subsequent months. The onset of an economic downswing thus became clearly visible before the famous crash. But the October event stays in the public's mind as the symbol of the Great Depression. For nearly four years, until the spring of 1933, the U. S. economy plunged into a deep reces­ sion. Activity declined, prices fell, and there emerged a massive unemploy­ ment problem. The economy ultimately overcame this shock in 1933. Prices rose rapidly in spite of substantial margins of unusual resources. Activity ex­ panded, but occasionally at a somewhat hesitant rate. The expansion, however, was interrupted by another recession of major proportions during 1937-38. The tragic sequence of events shaped public consciousness and influenced new approaches and views in economic policymaking. The activist approach to "stabilization policy" and a wide range of regulatory policies were essentially justified in terms of this experience. These policies were crucially influenced by our understanding and interpretation of the Great Depression. The view of a radically unstable economic process perennially on the edge of serious collapse gained wide popularity and became a central element of the Keynesian tradi- 2 INTRODUCTION tion. It encouraged, with supplementary interpretations, an interventionist and expanding role of the government in our economic affairs.