All submitted manuscript are fully reviewed by the Editorial Board and qualified reviewers. An initial evaluation is done by the editor in chief (EiC) to match the manuscript with the scope and writing structure of the journal (Maximum time required: one week). Then, scientific evaluation is done by editorial team (Maximum time required: two weeks); if the scientific content of the manuscript was desirable, it will sent to the referees for careful evaluation (Average time required: 2 months). According to the referees comments, the editor will make four decisions about the article: 1- Accept, 2- Minor revision, 3- Major revision and 4- Reject. All accepted manuscript will be sent to literary editor (Maximum time required: two weeks) and will be published online immediately thereafter. The below figure shows the evaluation steps of the manuscript in CPHE.