Contributors
R.R.M., M.D.G.S., A.L.P.R., M.A.P.M. participated in the conception and
design of the study; M.M.P.F., G.H.M., L.E.C.F. acted as judges of the
study; R.R.M. and M.A.P.M. planned and conducted statistical analysis.
R.R.M., M.D.G.S., A.L.P.R. and M.A.P.M. participated in the data
analysis and interpretation of results. All authors reviewed and
approved the final version of the manuscript.