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Authors must mention that the protocol for the research study has been authorized by a properly formed Ethics Committee of the institution where the work was done and that it complies with the rules of the Human Subjects Protection Act.  Declaration of Helsinki. All human subjects research must contain a statement stating that the subject granted informed permission. The privacy of patients should be protected. Photographs must be edited in such a way that human subjects are not identifiable (or an eye bar should be used). Any animal trials must be shown to be ethically appropriate and, when applicable, follow national criteria for animal use in research.