Objective: Establishing reasonable control standard of average length of stage in hospital.
目的：制定较为合理的平均住院日控制标准。
Conclusion: It's reasonable and feasible in calculating controlling standard of average length of stage.
结论：利用病例分型原理计算平均住院日控制标准是合理可行的。
Conclusion: It's reasonable and feasible in calculating controlling standard of average length of stage.
结论：利用病例分型原理计算平均住院日控制标准是合理可行的。
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