The expert meeting of Journal of Disease Surveillance will be reviewed after quitting the course, which means that an expert quits the review of a paper for some reason, and then is invited to participate in the review of the same paper again after revision. In academic journals, a paper needs several rounds of peer review by experts before it is published to ensure its scientific, reliable and academic nature. If an expert can't finish the task of reviewing the manuscript for personal reasons, he needs to quit the course. After the manuscript is withdrawn, the editorial department will invite other experts to continue the review. When this paper is revised and enters the review stage again, the editorial department will invite experts to participate in the review again to ensure the quality and reliability of the paper. The expert meeting of Journal of Disease Surveillance will be reviewed after quitting the course, which means that an expert quits the review of a paper for some reason, and then is invited to participate in the review of the same paper again after revision.