Pardo, J. http://orcid.org/0000-0003-0921-0066
Mena, A.
Jiménez, E.
Aymar, N.
Ortiz, I.
Roncero, R.
Mestre, F.
Vidal, M.
Article History
Received: 21 December 2018
Accepted: 19 April 2019
First Online: 15 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Because fentanyl pectin nasal citrate is an approved drug for the treatment of breakthrough pain, ethical approval is not necessary. However the study has been ethically approved.
: All patients signed the informed consent to participate in the study.