Hi Tanny,
great! I found them online:

[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8915657/|Beliefs about the body and pain]
Do you have access to the whole study Tanny? I only get these highlights.
*"    Beliefs are an important target for the management of musculoskeletal pain.
*Behavioural learning is key to elicit and disconfirm unhelpful beliefs.
*We propose key principles to guide clinicians in promoting behavioural change.
*A case illustrates the role beliefs have on musculoskeletal pain management."


[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8915657/|Placebo Responses and Their Clinical Implications in Fibromyalgia]
"Within-placebo mean change scores of baseline vs. follow-up assessments were large for pain (mean change = 2.31, 95% CI: 0.42–4.21, p = 0.017), functional disability (mean change = 3.31, 95% CI: 2.37–4.26, p < 0.000), and depression (mean change = 1.55, 95% CI: 0.92–2.18, p < 0.000). Heterogeneity was found to be large for all outcomes."