CONFLICT OF INTEREST

     When submitting a manuscript, authors are responsible for recognizing and disclosing financial and other conflicts of interest that might bias their work. They should acknowledge in the manuscript all financial support for the job and other financial or personal connections to the work. Suppose there are no such conflicts or financial support to acknowledge. In that case, the authors should declare this by the following statement: The authors confirm that no known conflicts of interest are associated with this publication. There has been no significant financial support for this work that could have influenced its outcome.