The visual analog scale (VAS) demonstrates comparable validity for perennial allergic rhinitis (PAR) and nonallergic rhinitis (NAR) severity and quality-of-life (QoL) impairment, according to a study ...
Please provide your email address to receive an email when new articles are posted on . A continuous visual analog scale has a high degree of sensitivity and discriminating capacity that detects ...
The feasibility, validity and reliability of the Time Trade-Off (TTO) and Visual Analogue Scale (VAS) methods in obtaining preference values for health states were compared in a random sample of the ...
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