Figure 1From: Free hemoglobin concentration in severe sepsis: methods of measurement and prediction of outcomeFree hemoglobin concentrations in survivors and non-survivors of severe sepsis as obtained by ELISA and three spectrophotometric methods. Data are given in boxplots (median, quartile, minimum, maximum). For statistical evaluation the Mann-Whitney test was used. Spectrophotometric methods were the methods of Harboe [13], Noe [14] and Fairbanks [15].Back to article page