Abstract
In (1), the following error was published on page 946.
Figure 2
The last bar on the right of the figure was correctly labelled as 44%, but the level of the bar was incorrectly positioned at 14%. The correct version of the figure appears below.
Headache-response and pain-free rates at 1 and 2 h post-treatment by treatment group. h Headache response; j pain free. PBO, placebo; Z2.5, zolmitriptan 2.5 mg; E40, eletriptan 40 mg; E80, eletriptan 80 mg; comparisons with placebo, ∗P < 0.05; ∗∗P < 0.01; ∗∗∗P < 0.0001; comparisons between eletriptan and zolmitriptan, ††P < 0.01; †††P < 0.0001; comparisons between eletriptan 80 mg and eletriptan 40 mg, ‡P < 0.01.
We apologise for this error.