Cardiac catheterization, standard lung function testing before and after iloprost inhalation, 6-min walk test, World Health Organization functional class, and hemodynamic parameters were monitored.

研究监测了吸入前后的心导管检查、标准肺功能检查，6分钟步行实验、世界卫生组织功能分级和血流动力学指标。

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Cardiac catheterization, standard lung function testing before and after iloprost inhalation, 6-min walk test, World Health Organization functional class, and hemodynamic parameters were monitored.

研究监测了吸入前后的心导管检查、标准肺功能检查，6分钟步行实验、世界卫生组织功能分级和血流动力学指标。

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