An insufficient concentration or decreased activity of any coagulation factor can cause hemophilia, except factor XII deficiency which is asymptomatic.

任何凝血因子的浓度不够或者活性降低都会引起血友病，一个例外是缺乏因子XII的话，不会有相关症状出现。

Given at our lodging in Aslan's How this XII day of the month Greenroof in the first year of Caspian Tenth of Narnia.

此战书写于阿斯兰堡垒，凯斯宾十世元年元月十二日。