患者,女,28岁。间断腹痛腹泻16余年, 排便次数4〜5次/天,进食奶制品后症状加重。考虑诊断为肠易激综合征,但首先应除外
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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