Recently, Rao Yi, a professor at Peking University, publicly named and criticized the editor-in-chief of the international journal Cancer Cell, a person surnamed Mao, for taking money to help publish papers, charging 2 million for a single article. Rao Yi questioned him by email; the other party denied it and demanded that the remarks be retracted, but Rao Yi refused. Netizens dug up information suggesting the person is Mao Yuntao.