Methods 34 patients with KSD and 32 healthy controls were selected from the epidemic area of keshan disease.
方法选择黑龙江省富裕县克山病病区慢型、潜在型克山病患者34例，健康人32例。
Objective To study clinical feature, abnormal electrocardiogram (ECG) and heart size of latent Keshan disease (KSD).
目的研究潜在型克山病的临床特征，心脏大小及异常心电图的动态变化。
Most technicians in KSD have overtaken many medium and large size projects of bulk solids conveying system and gained great achievements.
公司众多的技术骨干都承担过许多大中型粉体工程和气力输送项目的设计和工程总承包，有许多成功的业绩。
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