Reviewers are free to provide comments in any form and can also make use of the sample referee sheet and guidelines provided below. Reviewers must keep the submission confidential. Philippine Science Letters advocates transparency in the review process and encourages the reviewers to allow themselves to be identified when the paper is published. However, reviewers who wish to remain anonymous will not be identified. Moreover, if one of the reviewers wishes to remain anonymous, none will be identified. A complete list of reviewers' responsibilities and guidelines can be found in the Publication Ethics and Malpractice Statement.