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Table 1 Eligibility criteria

From: Clinical applications of palmitoylethanolamide in pain management: protocol for a scoping review

  Inclusion Exclusion
Study design Primary studies of any design that includes a control group Systematic reviews
Population Patients who have chronic pain n/a
Intervention/exposure Administration of PEA alone or in combination n/a
Outcomes Pain reduction assessed with all approaches available for assessing pain intensity Anything other than the selected outcomes
Language English Anything other than English
Publication status Published in peer review journals, full-length articles Published in not peer-review journals, unpublished works as a full-text, abstract, conference meetings
Others All study dates, length of follow-up, setting n/a