Resolution: standard / high
Figure 1.
Hourly consumption of sufentanil. Group 1 (n = 15) received sufentanil infusion alone, whereas group 2 (n = 15) received sufentanil plus magnesium sulphate. Data are expressed as means ± standard deviation. *P < 0.001, group 1 versus group 2.
Memiş et al. Critical Care 2003 7:R123 doi:10.1186/cc2365