Contributors
MP, FV and AL had full access to all of the data in the study and MP
took responsibility for the integrity of the data and the accuracy of
the data analysis. MP and FV designed the study, wrote the study
protocol and obtained the funding for the study. MP is the
coordinator-investigator and FV the methodologist and supervisor. MP and
FV were responsible for acquisition of data. MP, FV and AL were
responsible for the verification of the underlying data, the analysis
and the interpretation of data. AL was responsible for statistical
analysis. MP and FV wrote the draft manuscript. MP, AL, IDC, DG, PML,
and FV revised the manuscript and approved the final version before
submission. MP was responsible for study supervision and was the
guarantor for the study. All listed authors meet authorship criteria.
All authors confirm that they had full access to all data in the study
and accept responsibility for publication.