title: Sildenafil for pulmonary arterial hypertension complicating respiratory disease.
authors.forename: Ashutosh N
authors.initials: AN
authors.lastname: Aggarwal
mesh_terms: D006801:Humans; D006976:Hypertension, Pulmonary / Q000150:complications* / Q000188:drug therapy*; D010879:Piperazines / Q000627:therapeutic use*; D011687:Purines / Q000627:therapeutic use; D000068677:Sildenafil Citrate; D013450:Sulfones / Q000627:therapeutic use*; D014665:Vasodilator Agents / Q000627:therapeutic use*
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate