Fig. 4: Search strategy implemented.
From: Pain assessment using physiological responses/markers in different types of pain: a scoping review
The figure illustrates the search strategy used for the systematic review. Three categories of terms were combined: pain, assessment, and physiological signals. Terms for pain and assessment were restricted to article titles, while physiological signals were searched in titles, abstracts, and keywords. The dollar sign in “Signal$” indicates truncation, allowing the inclusion of variations such as “signal” and “signals”.
