Bioassay of small amounts of vasoactive substances.
D001681:Biological Assay; D006801:Humans; D014662:Vasoconstrictor Agents / Q000097:blood*; D014665:Vasodilator Agents / Q000097:blood*
D014662:Vasoconstrictor Agents; D014665:Vasodilator Agents
VASOMOTOR DRUGS/in blood