This report is the fifth in a series summarizing the activities for the period between April 1983 and March 1984 of the US-Japan Cooperative Cancer Research Program and culminates the second five-year period of its operation, from 1979 to 1984. In addition to an administrative report outlining overall activities, this volume also includes detailed progress reports in each program area.
Since its inception in May 1974, the US-Japan Cooperative Cancer Research Program has been instrumental in establishing a close working relationship between researchers in Japan and the United States and in providing an important means of exchanging scientific information. It can be said with confidence that this activity has significantly contributed, both directly and indirectly, to the impressive progress that has marked cancer research in recent years. In October 1983, the Program was renewed for a third five-year period, beginning April 1, 1984 to March 31, 1989.
It is our sincere hope that scientists in both countries will continue to make use of the cooperative bonds that have been cultivated under the Program, and that the future will bring further progress in pure research and in the application of research results for the general benefit of society. With initiation of the new 10-year Comprehensive Cancer Control Program promulgated by Prime Minister Yasuhiro Nakasone, there will be the enhancement of international cooperation in cancer research with the US and other countries through the new efforts by the Japanese Ministry of Health and Welfare, the Japanese Ministry of Education, Science & Culture, the Japanese Science and Technology Agency.
The supporting agencies deeply appreciate the enthusiastic and unselfish efforts that the program coordinators and principal advisors have devoted toward the program’s successful implementation. It is our sincere hope that the future will prove even more successful and fruitful through the increasing interest and participation of cancer researchers of both countries in this cooperative program. The dedicated contributions of Ms. Beverly Schaff of the National Cancer Institute and Messrs. Nagahide Onozawa and Iwao Abe of the Japan Society for the Promotion of Science are gratefully acknowledged.

Fuminori Sakai, M.D., D.M. Sc.
Executive Director
Japan Society for the Promotion of Science

Robert R. Omata, Ph. D.
Executive Secretary
US-Japan Cooperative Cancer Research Program
Office of International Affairs
National Cancer Institute