Author contributions
E.C.G. participated in the design of the study and its or organization, conduct and data acquisition, and was responsible for the main composition of the manuscript. N.P. and A.-L.O. participated in the conduct of the study. A.S.-M. covered all statistical aspects of the study and edited the manuscript. D.F. participated in the study design, its organization and edited the manuscript. J.S. provided additional text and citations and in-depth editing of the manuscript. All authors proofread the final manuscript prior to submission.