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Corinne Levy reported receiving grants from GlaxoSmithKline, Merck Sharp & Dohme, and Sanofi. The other authors have no conflicts of interest relevant to this article to disclose.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Written patient and parental consent were not required for this study, but all participants were informed by a written form.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to Participate"}},{"value":"This study was performed in line with the principles of the Declaration of Helsinki and was validated by the\n                      Institut national de la sant\u00e9 et de la recherche m\u00e9dicale\n                      (INSERM) ethics committee in agreement with French regulations for such observational studies.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical Approval"}}]}}