Duration that patient was able to hold balance position:Time:Pt:^Patient:Qn:NIH Toolbox
duration that patient was able to hold balance position:time:pt:^patient:qn:nih toolbox
Duration that patient was able to hold balance position:Time:To identify measures at a point in time:^Patient:Quantitative:NIH Toolbox
duration that patient was able to hold balance position:time:to identify measures at a point in time:^patient:quantitative:nih toolbox