RT Journal Article SR Electronic T1 Occupational asthma due to gas metal arc welding on mild steel. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 587 OP 589 DO 10.1136/thx.50.5.587 VO 50 IS 5 A1 O Vandenplas A1 F Dargent A1 J J Auverdin A1 J Boulanger A1 J M Bossiroy A1 D Roosels A1 R Vande Weyer YR 1995 UL http://thorax.bmj.com/content/50/5/587.abstract AB Occupational asthma has been documented in electric arc welders exposed to manual metal arc welding on stainless steel. A subject is described who developed late and dual asthmatic reactions after occupational-type challenge exposure to gas metal arc welding on uncoated mild steel.