Intended for healthcare professionals

CCBYNC Open access
Research

Frequency and level of evidence used in recommendations by the National Comprehensive Cancer Network guidelines beyond approvals of the US Food and Drug Administration: retrospective observational study

BMJ 2018; 360 doi: https://doi.org/10.1136/bmj.k668 (Published 07 March 2018) Cite this as: BMJ 2018;360:k668