Rapid responses are electronic comments to the editor. They enable our users to debate issues raised in articles published on bmj.com. A rapid response is first posted online. If you need the URL (web address) of an individual response, simply click on the response headline and copy the URL from the browser window. A proportion of responses will, after editing, be published online and in the print journal as letters, which are indexed in PubMed. Rapid responses are not indexed in PubMed and they are not journal articles. The BMJ reserves the right to remove responses which are being wilfully misrepresented as published articles.
In China, laboratory instructors always arrange researchers to conduct experiments during the daytime, they can read or write articles at night or on the weekends in general. In addition, due to the seriousness of submission and review of the literature, a relatively good environment is required. Because the environment will be relatively quiet in the middle of the night and weekends, many Chinese researchers like to submit papers at these times.
No competing interests
23 December 2019
Spine Disease Research Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China