Figure 8From: Ultrasound assessment of lower limb muscle mass in response to resistance training in COPD Bland-Altman plots of the inter-operator reproducibility of ultrasound measurements (a) RF csa : Operator A vs. Operator B, (b) Q t : Operator A vs. Operator B, (c) RF csa : Operator A vs. Operator C, and (d) Q t : Operator A vs. Operator C. Back to article page