title: Echocardiographic observation on pulmonary arterial diastolic pressure and resistance before and after oxygen inhalation in 30 newborns.
mesh_terms: D001794:Blood Pressure / Q000187:drug effects; D004452:Echocardiography; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis* / Q000209:etiology; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000175:diagnosis*; D010100:Oxygen / Q000494:pharmacology*; D014655:Vascular Resistance / Q000187:drug effects
chemical_list: D010100:Oxygen