Methods: PPS was used for sampling, Human capital method and Willing-to-pay method were used in the calculation of economic burden of disease.
方法：采用PPS抽样，应用人力资本法和支付意愿法对疾病的经济负担进行计算。
Methods: PPS was used for sampling, Human capital method and Willing-to-pay method were used in the calculation of economic burden of disease.
方法：采用PPS抽样，应用人力资本法和支付意愿法对疾病的经济负担进行计算。
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