title: [Vasoactive substances and pulmonary shunt ratios].
mesh_terms: D006801:Humans; D011652:Pulmonary Circulation / Q000187:drug effects*; D014662:Vasoconstrictor Agents / Q000494:pharmacology*; D014665:Vasodilator Agents / Q000494:pharmacology*
chemical_list: D014662:Vasoconstrictor Agents; D014665:Vasodilator Agents