A reviewer should not, for the purpose of his/her own research, use unpublished material disclosed in a submitted manuscript, without the approval of the editor,
The data included in the research paper is required to be kept confidential, and the reviewer shall not be allowed to use for his/her any personal study,
The reviewer must declare any potentially conflicting interests (g., personal, financial, intellectual, professional, political, or religious). In this situation, s/he will require to follow the journal’s policies on situations they consider representing a conflict to reviewing,
A reviewer should be honest to declare conflicts of interest, if, the research paper under reviews is the same as his/her presently conducted study,
If the reviewer feels unqualified to separate his/her bias, s/he should immediately return the manuscript to the editor without review and brief him/her about the matter.