Peer review is a process in which journals review the quality and content of manuscripts. After pre-screening the manuscript, the editorial team will send invitations to potential reviewers according to the required professional knowledge. The editor should assign at least two reviewers for review, which is the minimum requirement. However, there is no provision for the maximum number of auditors.

The reviewers independently evaluate the manuscript and advise the editor whether the manuscript is worth publishing in the journal. Generally speaking, it is not necessary for all reviewers to accept this paper. But it depends on the specific policies of the journal. Some journals may tend to get unanimous approval from reviewers, while others need a majority.

The editor will consider the feedback from all reviewers and make an informed decision to accept or reject the manuscript. In some cases, if the proportion of opinions accepted and rejected is equal, or if the editor is not satisfied with the reviewers' opinions, the editor may consider sending them to other reviewers.