Fig. 2From: Cerebral mechanism of celecoxib for treating knee pain: study protocol for a randomized controlled parallel trialSchedule of enrollment, interventions, and assessments. Abbreviations: ATS Attention Test Scale, MRI magnetic resonance imaging, PAS Pain Assessment of Sphygmomanometer, SAS Self-rating Anxiety Scale, SDS Self-rating Depression Scale, SF-12 12-Item Short Form Health Survey, WOMAC Western Ontario and McMaster osteoarthritis indexBack to article page