Publication status of submitted manuscripts reporting positive vs negative results by journal.

*1 manuscript with positive results submitted to the BMJ was withdrawn by authors before editorial decisions were made. N = number of submitted manuscripts.* 一篇携带阳性研究结果、提交至《英国医学期刊（British Medical Journal，BMJ）》的投稿手稿，在编辑作出最终决策前被作者撤回。N 代表投稿手稿的总数量。