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. 2018 Dec 20;5:42. doi: 10.1186/s40779-018-0189-y

Fig. 4.

Fig. 4

Bland-Altman plot for 95% limits of agreement for measures of left eye optic sheath: experienced and inexperienced users, indicating again that measures made by trainee users had minimal bias and were, on average, slightly lower than those from physician users