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https://www.zhihu.com/question/20602915
使用 Dr. 头衔时有什么注意事项? - 知乎
On the other hand, using Dr. before the name of all who hold medical doctor degrees and doctorates is cumbersome for readers. Instead, University style recommends that in most instances, a person's credentials can and should be noted within the context of the publication, typically close to the first appearance of the person's name.