以下为句子列表：
英文: As the unit of analysis at hospital level, quantitative survey was used to collect primary data. 100 valid samples were gathered including medical centers, regional hospitals, and district hospitals.
中文: 实证结果显示，当医院面临市场及医疗技术设备的快速变化时，就竞争策略而言差异化策略比低成本策略较能创造高绩效。
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