Online pain questionnaire screenshot of questions C3a-C3ai, showing appearance as seen by participants circa 2019.

This resource can be downloaded or viewed using the link: pain_c3a_c3ai.png

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ctsu.ox.ac.uk/ukb/ukb/images/pain_c3a_c3ai.png