The use of the Valsalva test in the differential diagnosis of bronchial asthma.
D001249:Asthma; D003937:Diagnosis, Differential; D006333:Heart Failure / Q000175:diagnosis*; D006801:Humans; D011656:Pulmonary Emphysema / Q000175:diagnosis*
HEART FAILURE, CONGESTIVE/diagnosis; PULMONARY EMPHYSEMA/diagnosis