Adult Cancer Pain, Version 3.2019, NCCN Clinical Practice Guidelines in Oncology.
J Natl Compr Canc Netw. 2019 Aug 1;17(8):977-1007. doi: 10.6004/jnccn.2019.0038.
J Natl Compr Canc Netw. 2019.
PMID: 31390582