Preserving the human voice: A plea for regulating <scp>ChatGPT</scp> use in Correspondence and Opinion writing

Correspondence and Opinion provide a 'human voice,' serving as the captivating elements that grab readers' attention and stimulate contemplation. The extent of ChatGPT's involvement in writing raises controversy. We tested ChatGPT's capability to generate readable Correspondence or Opinion, producing an English Opinion from a Japanese abstract. We also tasked ChatGPT with creating Correspondence and Reply for an English→German translated Opinion. Opinion, Correspondence, and Reply output here were found to be readable and reasonable. While preliminary, these results suggest that ChatGPT can generate such articles, prompting serious concern about AI taking over the 'human voice.' Some regulatory measures may be needed.