女孩4个月较快出现呼吸困难,面色苍白,心率160次/分,律齐,第一心音低钝肝脏肋下可及4~5cm,双肺底较多细湿性音,右侧肢体活动减弱;肌力4级,X线示心外形为球形,搏动低弱,其患儿诊断为心内膜弹性纤维增生症,其充血性心衰类型为
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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