ALB and edema: By scanning and enlarging the figure and constructing agrid from the y-axis to obtain the numerical data, and re-plotting these values witha conventional aspect ratio and horizontal text (Fig. 2b), it can be seen that the plasma albumin levelshad risen by the time that the oedema had improved.Furthermore, a two-tailed independent t-test confirms that this was a statisticallysignificant rise in the mean albumin level(P = 0.02).