What is the fine-grained topic of the following text: The most famous case of similar to what Miesha Tate is describing is that, of course, of Jon “Bones” Jones, who has been the subject of high controversy and scrutiny for testing positive for trace levels of turinabol recently that was found by scientists to be the result of a long-term metabolite ingested potentially many years ago. Only return the topic.
Jon “Bones” Jones testing positive for turinabol.