title: Phosphodiesterase type 5 inhibitors in pulmonary hypertension: a Hobson's choice for Indian patients.
authors.forename: Anita
authors.initials: A
authors.lastname: Saxena
mesh_terms: D002243:Carbolines / Q000627:therapeutic use; D018450:Disease Progression; D006801:Humans; D006976:Hypertension, Pulmonary / Q000188:drug therapy* / Q000453:epidemiology / Q000503:physiopathology; D007194:India / Q000453:epidemiology; D010726:Phosphodiesterase Inhibitors / Q000627:therapeutic use*; D010879:Piperazines / Q000627:therapeutic use*; D011687:Purines / Q000627:therapeutic use; D000068677:Sildenafil Citrate; D013450:Sulfones / Q000627:therapeutic use*; D000068581:Tadalafil
chemical_list: D002243:Carbolines; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068581:Tadalafil; D000068677:Sildenafil Citrate