title: Primary pulmonary hypertension, nifedipine, and hypoxemia.
mesh_terms: D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000097:blood / Q000188:drug therapy*; D009543:Nifedipine / Q000627:therapeutic use*; D010100:Oxygen / Q000097:blood*
chemical_list: D009543:Nifedipine; D010100:Oxygen