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Table 1 Databases and search terms

From: Pain clinic definitions in the medical literature and U.S. state laws: an integrative systematic review and comparison


Search terms

Filters applied

PubMed (Medline)

“Pain Clinics/classification”[Majr] OR “Pain Clinics/standards”[Majr]) OR (“Pain Clinics/statistics and numerical data”[Majr] OR “Pain Clinics/trends”[Majr])

“Humans” and “Full-text” filters applied

Google Scholar

“pain clinics” OR “pain treatment” facility



(“pain treatment” OR “pain clinic”) AND facility

“Humans” and “English” filters applied.


Citation chains for:

(1) Loeser, et al. [16]

(2) Wells & Miles [61]