Estimation of histamine threshold by means of measurement of the work of breathing.
D000293:Adolescent; D000328:Adult; D000336:Aerosols; D000367:Age Factors; D000368:Aged; D001249:Asthma / Q000503:physiopathology; D001980:Bronchi / Q000187:drug effects / Q000503:physiopathology; D001986:Bronchial Spasm / Q000139:chemically induced; D001991:Bronchitis / Q000503:physiopathology; D003041:Coca; D005260:Female; D006632:Histamine / Q000009:adverse effects / Q000494:pharmacology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010946:Plants, Medicinal; D011656:Pulmonary Emphysema / Q000503:physiopathology; D012129:Respiratory Function Tests; D014692:Ventilation-Perfusion Ratio; D014939:Work of Breathing / Q000187:drug effects*
D000336:Aerosols; D006632:Histamine