“In cancer patients (P), how does cannabidiol (CBD) (I), compared with opioids (C), affect pain while receiving chemotherapy treatment (O) in 3 months (T)?” These two articles are the main ones to use along with others. 1. O’Brien, K. (2022). Cannabidiol (CBD) in Cancer Management. Cancers (Basel).14(4):885. DOI: 10.339 2. Griffiths, C., Aikins, J., Warshal, D. & Ostrovsky, O. (2021). Can Cannabidiol Affect the Efficacy of Chemotherapy and Epigenetic Treatments in Cancer? Biomolecules.11(5):766. DOI: 10.3390/biom11050766. PMID: 340654790/cancers14040885.