The use of placebo controls.
Gilbert
E M
EM
Packer
M
M
D004992:Ethics, Medical; D006333:Heart Failure / Q000188:drug therapy; D006801:Humans; D010919:Placebos; D011804:Quinolines / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic; D014665:Vasodilator Agents / Q000627:therapeutic use
D010919:Placebos; D011804:Quinolines; D014665:Vasodilator Agents; C047316:flosequinan