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作者为美国乔治·华盛顿大学医学院教授,于9月26日在广州中山医学院讲学,本文根据当日讲学录音整理,未经本人审阅。
The author is a professor at the George Washington University School of Medicine in the United States and lectured at the Zhongshan Medical College in Guangzhou on September 26th. This article is based on the lecture recordings of the day and was not reviewed by the author.