RT Journal Article SR Electronic T1 Resurgent coal mine dust lung disease: wave of the future or a relic of the past? JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 715 OP 716 DO 10.1136/oemed-2016-103737 VO 73 IS 11 A1 Robert A Cohen YR 2016 UL http://oem.bmj.com/content/73/11/715.abstract AB