we studied bronchial responsiveness to histamine in 30 patients with acute or chronic bronchitis , 28 patients with bronchial asthma and in 42 more patients with other lung diseases , using a new device -- the astograph -- which yielded graphically a continuous dose-response curve of the respiratory resistance by the oscillation method during the inhalation of histamine diphosphate .
C0019588
histamine
C0062740
histamine diphosphate