Author contributions
A.B. is the principal investigator of the ELENA cohort. A.B., M.P. and F.D. contributed to the study conception, design and data collection and analysis. Interpretation of the data was done by A.B., M.P. and J.Y.B. The draft of the manuscript was written by A.B., M.P. and F.D. A.B., M.P., F.D., M.C.P., B.H. and J.Y.B. commented on previous versions of the manuscript, and all authors read and approved the final manuscript.