患者女,50岁。G1P1。主诉腰骶部酸痛,有下坠感。妇检:患者平卧向下屏气用力时宫颈脱出阴道口,宫体仍在阴道内,其子宫脱垂为
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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