RT Journal Article SR Electronic T1 The Control and Elimination of Silicosis in the West Coast Haematite Iron Ore Industry JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 30 OP 47 DO 10.1136/oem.4.1.30 VO 4 IS 1 A1 John Craw YR 1947 UL http://oem.bmj.com/content/4/1/30.abstract AB