title: [Therapeutic effects of ligustrazine on pulmonary hypertension. Report on 38 assessments with right heart catheterization and blood gas analysis].
mesh_terms: D000328:Adult; D000368:Aged; D002245:Carbon Dioxide / Q000097:blood; D006328:Cardiac Catheterization; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000097:blood / Q000188:drug therapy*; D007269:Injections, Intra-Arterial; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011651:Pulmonary Artery; D011719:Pyrazines / Q000008:administration & dosage* / Q000627:therapeutic use
chemical_list: D011719:Pyrazines; D002245:Carbon Dioxide; D010100:Oxygen; C017953:tetramethylpyrazine