K.AS. participated in the conception, design and planning of the study, performed data analysis, execution of research program, interpretation of the results and manuscript writing and review of the literature. M.F. contributed in the conception and interpreta- tion of the statistical analysis, and writing of the manuscript. S.L. contributed in the study planning, manuscript review and critical discussion. A.P. contributed in the conception of geocoding pro- cess, exposure assessment and writing of the manuscript. Y.A. supplied data from participating health registries, advice on data collection, classification of cases and critical discussion. C.P. parti- cipated in the conception, design and planning of the study, and supervised the data analysis and revision of the manuscript. All authors saw and approved the final version of the manuscript.