Welcome and Introduction

Abstract

On behalf of the “Gesellschaft zur Bekämpfung der Krebskrankheiten Nordrhein-Westfalen e. V.” I welcome you in Düsseldorf. During these two days problems of oncogenesis have to be discussed. The participants have been selected with the intention of giving a review of the various fields which have some bearing on this topic. So you see here biochemists, cytologists, pathologists, immunologists, pharmacologists, virologists, and so on. Only by extensive cooperation of all scientists concerned in this field can this difficult problem of carcinogenesis ever be cleared up. Once the causal relations have been identified, we may have a reliable basis for cancer treatment.