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. 2009 Aug 11;13(4):R134. doi: 10.1186/cc7995

Figure 4.

Figure 4

Bland-Altman analysis of agreement showing the differences between protein content (g/L) measurements plotted against the average between methods. Squares correspond to patients. The middle horizontal line indicates the average difference between the two methods (12.1 g/L), whereas the outer lines represent the upper and lower limits of agreement. The black squares represents patients with acute cardiogenic lung oedema.