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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Published in not peer-review journals, unpublished works as a full-text, abstract, conference meetings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