Does my paper require ethical approval?
Papers reporting human studies must include a statement that specifies whether approval was obtained from an ethical or institutional review board (IRB). This statement should include the name of the ethics committee or IRB and the approval number if available. If the study was exempt from ethical review, state that your paper was exempt and include the name of the review committee and the reason for exemption. If ethics approval was not sought, please specify why it was not required and cite the relevant guidelines or legislation where applicable, for the benefit of an international readership.