Pellegrini, Antonio
Legnani, Claudio
Macchi, Vittorio
Meani, Enzo
Article History
Received: 19 September 2017
First Online: 15 January 2018
Compliance with ethical standards
:
: Each author discloses any financial and personal relationships (e.g., employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, grants or other funding) that might pose a conflict of interest in connection with the submitted article.
: Each author certifies that his institution has approved the human protocol for this investigation and that all investigations were conducted in conformity with ethical principles of research, and that informed consent was obtained.