The phrase "addressed the same subject" is correct and usable in written English.
It can be used when discussing topics or themes that have been covered or mentioned in different contexts or works.
Example: "In her latest article, she addressed the same subject as her previous research paper, focusing on the implications of climate change."
Alternatives: "discussed the same topic" or "covered the same issue."
Addressing the same subject on Wednesday, the commission's vice-president, Andrus Ansip, who is leading the charge to create a digital single market, said: "I detest geo-blocking from the bottom of my heart".
Vice President Dick Cheney, Secretary of Defense Donald H. Rumsfeld, Secretary of State Colin L. Powell and Cherie Blair, the wife of the British prime minister, are also to address the same subject in news conferences, briefings and media appearances over the next week, even as the Taliban are in retreat and some veiled women in Afghanistan are already uncovering their faces.
It can be stated that, besides the serious limitations that go with them, the first years' results may be used in a later study concerning the temporal evolution of an intervention's effect on the sample (by us or by others who want to address the same subject).
One of Mr. al-'Owhali's lawyers, Frederick H. Cohn, would not comment specifically on the agent's allegations but suggested that if his client testified on Thursday, he might address the same subjects.
By an odd coincidence, Wolfgang Rihm's opera "Dionysos," which had its world premiere in July during the final Salzburg Festival planned by Mr. Flimm, addresses the same Nietzschean subject matter.
In acknowledging "the preference on your [Frémont's] part that I should make an open order for the modification, which I very cheerfully do," the president "ordered that the said clause of said proclamation be modified, held, construed as to conform to and to not transcend the provisions on the same subject" addressed in the Confiscation Act of early August.
