设计：单一样本单因素分析。
单因素分析表明：临床分期、肿瘤大小是局部晚期乳腺癌的生存指标。
Univariate analysis found that the size of tumor, TNM stage were related to survival rates.
对并发症吻合口瘘、术区感染、死亡的危险因素作单因素及多因素分析。
Made a analysis of risk factor of stoma fistula, infection and death. and a survival analysis.
考虑到丢单成本这一因素，给出了相应的总成本函数，并对其进行了分析。
Accounting for the lost sale cost, the corresponding total cost function is given and analyzed.
考虑到丢单成本这一因素，给出了相应的总成本函数，并对其进行了分析。
Accounting for the lost sale cost, the corresponding total cost function is given and analyzed.
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