Conflict of Interest Policy

Conflicts of interest should be as transparent as the disclosures of standardized authors. Financial and personal relationships are easily identifiable and may lead to bias in the work. The sources of funding should be described specifically, with explanations of their role, and the authors should state that the sources of support had no specific role in the work. The authors should state that they have access to all studies and that sponsors have not intervened in the data or work. If there is none, the authors can state.