中年男性,间歇血尿2月。B超显示膀胱右后壁一实性团块,不活动,膀胱深肌层受侵犯,未发现转移征象。应是膀胱癌哪一期()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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