title: Clinical and experimental study upon primary pulmonary hypertension.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000818:Animals; D001794:Blood Pressure; D005260:Female; D006439:Hemodynamics; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology* / Q000503:physiopathology; D007223:Infant; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000473:pathology / Q000503:physiopathology; D011652:Pulmonary Circulation; D051381:Rats; D012737:Sex Factors