Blanco, Juan F. http://orcid.org/0000-0001-7803-9149
Díaz, Agustín
Melchor, Francisco R.
da Casa, Carmen
Pescador, David
Article History
Received: 20 August 2019
First Online: 9 November 2019
Compliance with ethical standards
:
: Juan F Blanco, Agustin Díaz, Francisco R Melchor, Carmen da Casa and David Pescador declare that they have no conflict of interest.
: All data are available from the corresponding author upon reasonable request.
: All procedures were in accordance with the ethical standards of the University Hospital of Salamanca Clinical Research Committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.