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今年6～7月,美国、西德肿瘤学界的几位学者在北京作了多次学术报告。这些报告内容丰富,深受欢迎。现将其中三次报告整理发表,以飨读者。
From June to July this year, several academics from the oncology community in the United States and West Germany made several academic reports in Beijing. These reports are rich in content and are very popular. Three of the reports are now published for readers.