1OLSCHEWSKI H,ARDESCHIR GH,SCHMEHL T,et al.Inhaled iloprost to treat severe pulmonary hypertension:an uncontrolled trial[J].Ann Intern Med,2000,132 (6):435-443.
2GHOFRANI HA,WIEDEMANN R,ROSE F,et al.Combination therapy with oral sildenafil and inhaled iloprost for severe pulmonary hypertension[J].Ann Intern Med,2002,136 (7):515-522.
