The pain visual analog scale: linear or nonlinear?
- PMID: 15108996
- DOI: 10.1097/00000542-200403000-00042
The pain visual analog scale: linear or nonlinear?
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Relationships between measurement of pain using visual analog score and morphine requirements during postoperative intravenous morphine titration.Anesthesiology. 2003 Jun;98(6):1415-21. doi: 10.1097/00000542-200306000-00017. Anesthesiology. 2003. PMID: 12766651 Clinical Trial.
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