Conflict of interest
M. Mensi reports grants, personal fees, and non-financial support from E.M.S. (Electro Medical Systems); E. Caselli declares that she has no conflict of interest; M. D’Accoliti declares that he has no conflict of interest; I. Soffritti declares that she has no conflict of interest; R. Farina declares that he has no conflict of interest; E. Scotti reports grants, personal fees, and non-financial support from E.M.S. (Electro Medical Systems); M.E. Guarnelli declares that she has no conflict of interest; C. Fabbri declares that she has no conflict of interest; G. Garzetti reports personal fees from E.M.S. outside the submitted work—Electro Medical Systems; S. Marchetti declares that she has no conflict of interest; A. Sordillo reports personal fees from E.M.S. (Electro Medical Systems) outside the submitted work; L. Trombelli reports grants and non-financial support from E.M.S. (Electro Medical Systems).