to test the effect of calcium chelation on airway responsiveness to methacholine , purebred basenji dogs were pretreated with a calcium-chelating aerosol ( edetate disodium , na2edta ) or a placebo aerosol ( saline or cana2-edta ) and then challenged with methacholine bromide aerosols .
C2266865
calcium-chelating
C0013618
edta