Patients with preexisting dnr orders are not included in this recommendation .

那些先前存在无法复苏情况的病人并不包括在这推荐之内。

Those creative statements confronted preexisting traditions and challenged conventional artistic norms .

这些具有创意的作品们直面旧有的传统也挑战常规的艺术形式。

This preexisting immunity gets rid of the virus before it can stimulate a new immune response .

这种预先存在的免疫力，能将病毒抗原在剌激产生新的免疫反应以前就被排除掉。

This may reflect preexisting cardiac disease , cardiac dysfunction related to the acute neurohumoral and autonomic stress response to stroke , or both .

这可能提示存在先前存在的心脏病以及与由卒中或者卒中和心脏病共同引起的急性神经元介质的和自发性的应激有关的心功能不全。

The presence of angiographic coronary artery disease was not significantly associated with preexisting retinal emboli .

血管造影证实为冠心病与术前是否存在视网膜动脉栓塞无明显相关性。