Pulmonary hypertension.
D000531:Altitude; D002648:Child; D002675:Child, Preschool; D006330:Heart Defects, Congenital; D006801:Humans; D006976:Hypertension, Pulmonary; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D011652:Pulmonary Circulation / Q000187:drug effects; D014043:Tolazoline / Q000494:pharmacology
D014043:Tolazoline