Conflict of Interest

All authors must disclose any conflict of interest that might influence their objectivity or the paper. Conflicts of interest are defined as financial, personal, social, or other interests that can directly or indirectly influence the author’s writings or submission of the manuscript. If there is no conflict of interest, then the authors must state it explicitly, both in the cover letter and the manuscript (under the section Conflicts of Interest). A potential conflict of interest includes the following examples: a) The suggested reviewer has a substantial direct or indirect financial interest in the subject matter of the manuscript; b) One of the authors belong to the same institute as the suggested reviewer; c) The suggested reviewer has an on-going research collaboration or grants with one of the authors; d) The suggested reviewer is a friend of one of the authors.