Etiological research in pediatric multiple sclerosis: A tool to assess environmental exposures (PEDiatric Italian Genetic and enviRonment ExposurE Questionnaire).

Pilotto S, Gencarelli J, Bova S, Gerosa L, Baroncini D, Olivotto S, Alfei E, Zaffaroni M, Suppiej A, Cocco E, Trojano M, Amato MP, D'Alfonso S, Martinelli-Boneschi F, Waubant E, Ghezzi A, Bergamaschi R, Pugliatti M