Human and animal research policy

All articles in which human participation was involved must have been carried out in accordance with the ethical standards of the World Medical Association and the principles established in the Declaration of Helsinki .

In the case of studies involving animal experiments or clinical trials (patients, patient material or medical data), we will require the approval of a national, regional or institutional Ethics Committee with responsibility for animal/human research. In the event that ethical approval has not been received, the authors must explain the reason, including an explanation of the study's adherence to the criteria proposed in the Declaration of Helsinki. In addition, they must include a statement that the experiments have been carried out with the prior informed consent of each of the participants.

Both the committee authorization and the consents will be mentioned in the 'Methods' section of the document.