Baradaran, A. et al. 2021. Determining chronic pain data elements as a first step towards improving quality of care and research in chronic pain: Chronic pain data elements for improving quality of care. Acta Biomedica Atenei Parmensis. 92, 4 (Sep. 2021), e2021272. DOI:https://doi.org/10.23750/abm.v92i4.9651.