Bleeding may be heralded by several day of exacerbation of pain.

数天的疼痛加剧可能为出血的先兆。

Of these, 209 had recently suffered an asthma exacerbation and 77 had stable disease.

这些人中，209名为哮喘恶化，77名为稳定型哮喘。

Another is the exacerbation of social tensions in what is a perilously unequal country.

另一个结果就是加剧了这个不平等到危机四伏的国家中的社会紧张。

Conclusion: Furosemide given by inhalation can reduce the acute exacerbation of asthma.

结论：雾化吸入速尿能减轻哮喘症状。

HRV infection is the most important risk factor for asthma exacerbation in these patients.

HRV感染是最主要的造成哮喘恶化的因素。