Chronic obstructive pulmonary disease, COPD, recognised as an occupational disease
The chronic obstructive pulmonary diseases,COPD, combine chronic symptoms ( cough, dyspnea, , bronchial hyper secretion) and a bronchial obstruction...
The chronic obstructive pulmonary diseases,COPD, combine chronic symptoms ( cough, dyspnea, , bronchial hyper secretion) and a bronchial obstruction...