(1) The informed consent was obtained from each participant included in the study, and (2) the study protocol is consistent with the ethical guidelines of the 1975 Declaration of Helsinki as reflected in a priori approval by the institution\'s human research committee.
In the studies using animal experimentation, assurance must be provided that all animals received humane care according to the criteria outlined in the "Guide for the Care and Use of Laboratory Animals" prepared by the National Academy of Sciences and published by the National Institutes of Health (NIH publication 86-23 revised 1985).
Every experimental or clinical study may raise controversial ethical issues (e.g., Institutional Ethical Approval to study on animal or human subjects). Thus, BI expects all authors, reviewers and editors to consider the COPE,ICMJE and Equator Network’s reporting guidelines in medical ethics plus the scientific writing. If any, authors should state related declaration(s), otherwise the following sentence should be given: “None be declared”.
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