患者,男,52岁。2天前出现呕血、黑便,1天前出现嗜睡、行为改变。腹部B超:脾肿大,肝功能:ALT65U/L,AST42U/L,ALB27.3g/L。最可能的诊断是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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