Sometimes bronchitis can lead to pneumonia, a deeper and far more serious infection of the lungs’ air sacs. Doctors may detect pneumonia by listening for a crackling or whistling sound in the lungs ...
Sometimes bronchitis can lead to pneumonia, a deeper and far more serious infection of the lungs’ air sacs. Doctors may detect pneumonia by listening for a crackling or whistling sound in the ...
Sometimes bronchitis can lead to pneumonia, a deeper and far more serious infection of the lungs’ air sacs. Doctors may detect pneumonia by listening for a crackling or whistling sound in the ...