title: Respiratory symptoms, chronic bronchitis, and ventilatory function in shipyard welders.
mesh_terms: D000328:Adult; D001991:Bronchitis / Q000453:epidemiology*; D002908:Chronic Disease; D005541:Forced Expiratory Volume; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D011009:Pneumoconiosis / Q000139:chemically induced*; D012123:Pulmonary Ventilation; D012383:Romania; D012767:Ships; D014896:Welding