早产临产的诊断标准是什么?
妊娠满28周至不满37足周,出现规律宫缩(20分钟≥4次),伴宫颈缩短≥75%,宫颈扩张2cm以上,诊断为早产临产。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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