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. 2020 Nov 19;15:3003–3012. doi: 10.2147/COPD.S268894

Figure 3.

Figure 3

Box plots of endurance times in minutes (min) in the standard and new endurance tests in Study A and Study B.

Notes: Boxes show 25–75 percentiles, whiskers show minimum and maximum values, lines through the boxes show median and crosses show mean values.