HERRERO TRUJILLANO, M; MENDIOLA DE LA OSA, A; INSAUSTI VALDIVIA, J  and  PEREZ-CAJARAVILLE, J. Neurolytic procedures for pancreatic cancer pain: a systematic review and a proposal for an algorithm treatment. Rev. Soc. Esp. Dolor [online]. 2019, vol.26, n.6, pp.342-358.  Epub Mar 30, 2020. ISSN 1134-8046.