Murillo Gonzalez, M.; Rodríguez Mesa, D.; Escobar Álvarez, Y.; Moya Riera, J. Effectiveness of fentanyl buccal tablet for the treatment of breakthrough cancer pain. Review on pharmacokinetics, safety and clinical use in special situations. Psicooncología 2014, 11 ,1, 141-149. https://doi.org/10.5209/rev_PSIC.2014.v11.n1.44923.