TY - JOUR T1 - Digest of Pneumoconiosis Statistics JF - British Journal of Industrial Medicine JO - Br J Ind Med SP - 112 LP - 112 DO - 10.1136/oem.29.1.112 VL - 29 IS - 1 AU - R. I. McCallum Y1 - 1972/01/01 UR - http://oem.bmj.com/content/29/1/112.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -