Patients who received the same anesthetic procedure were selected : 2 minutes after intravenous injections of the pretreatment drugs , anesthesia is induced with 0.3 mg.kg-1 etomidate injected intravenously over a period of 20-30 seconds .
B-OrganismTaxon O O O O O O O O O O O O O O O O O O O O O O O O O B-ChemicalEntity O O O O O O O O O