This journal operates a is a single-blind review, in which the reviewer’s identities are withheld from the authors but the reviewers are aware who wrote the paper they are evaluating. Reviewers are therefore required to keep manuscripts and the information they contain strictly confidential. Reviewers must not publicly discuss authors’ work and must not appropriate authors’ ideas before the manuscript is published. Reviewers must not retain the manuscript for their personal use and must not retaincopies of manuscripts after submitting their reviews. Reviewers are expected to respond promptly to requests to review and to submit reviews within the time agreed. Reviewers’ comments should be constructive, honest, and polite.