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2005年的全球哮喘负担报告中显示,全球哮喘患者达3亿。由于哮喘具有反复发作的特点,并常产生严重的后果,如果不能进行及时有
The 2005 global burden of asthma report showed that 300 million asthma patients worldwide. Because asthma has recurring features and often produces serious consequences, if not