TY  - RPRT
TI  - The pain visual analog scale: is it linear or nonlinear?
AU  - P S Myles
AU  - S Troedel
AU  - M Boquest
AU  - M Reeves
PY  - 1999
DO  - 10.1097/00000539-199912000-00038
UR  - https://pubmed.ncbi.nlm.nih.gov/10589640/
ID  - 10589640
ER  -