Pain Scales: Types of Scales and Using Them to Explain Pain
Psychometric properties of three single-item pain scales in patients with rheumatoid arthritis seen during routine clinical care: a comparative perspective on construct validity, reproducibility and internal responsiveness | RMD Open
The evaluation of smartphone versions of the visual analogue scale and numeric rating scale as postoperative pain assessment tools: a prospective randomized trial | SpringerLink
Pain Rating Scale
Visual linear analog scale (0-10 numeric pain distress scale) [6] | Download Scientific Diagram
Reassessing the assessment of pain: how the numeric scale became so popular in health care - WHYY
Emoji are shown to be as effective as numerical pain scales in judging patient pain levels in the hospital