她忽视了一些先兆症状，也没有检查病人的病历。
She ignored the warning signals and did not check the patient's medical notes.
血管迷走神经性晕厥出现的先兆症状和体征有哪些？
What premonitory signs and symptoms may exist for vasovagal syncope? 1.
ET可能是导致血管收缩，引起先兆症状的重要因子。
ET might be the important factor to cause vasoconstriction, resulting in the portent symptoms.
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