Clinical Research Chronic Pain https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6193199/http://www.chronicpainresearch.org/public/CPRA_WhitePaper_2015-FINAL-Digital.pdfhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3843878/https://pubmed.ncbi.nlm.nih.gov/29462012/https://www.ncbi.nlm.nih.gov/books/NBK470523/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6855684/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4198088/https://pubmed.ncbi.nlm.nih.gov/22154919/https://pubmed.ncbi.nlm.nih.gov/29854038/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6494527/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7040236/https://pubmed.ncbi.nlm.nih.gov/28541649/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6399116/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6613199/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5278258/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4743666/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5749131/https://onlinelibrary.wiley.com/doi/abs/10.1002/msc.1369 Back to Chronic Pain