Azotemia is seldom responsible for symptoms unless its severity is sufficient to produce uremia.

氮血症除非严重到足以造成尿毒症，否则很少引起症状。

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Azotemia is seldom responsible for symptoms unless its severity is sufficient to produce uremia.

症除非严重到足以造成尿毒症，否则很少引起症状。

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The results of dialysis time is too late, patients with significant symptoms of uremia.

结果：透析时机过晚，患者有明显尿毒症症状。

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