Full text
PDF






Contributor Information
J P Dilworth, Senior Registrar; Chest and Allergy Clinic, St Mary’s Hospital, London.
D M Mitchell, Consultant Physician; Chest and Allergy Clinic, St Mary’s Hospital, London.
J P Dilworth, Senior Registrar; Chest and Allergy Clinic, St Mary’s Hospital, London.
D M Mitchell, Consultant Physician; Chest and Allergy Clinic, St Mary’s Hospital, London.